1
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Dubey G, Mehra BS, Kumar S, Shyam A, Sharma KD, Vagadia M, Rana DS. Terahertz Crystal-Field Transitions and Quasi Ferromagnetic Magnon Excitations in a Noncollinear Magnet for Hybrid Spin-Wave Computation. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 39413412 DOI: 10.1021/acsami.4c10409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2024]
Abstract
The complexity of interactions between the crystal-field and unusual noncollinear spin arrangement in nontrivial magnets demands novel tools to unravel the mystery underneath. In this work, we study such interaction dynamics of crystal-field excitations (CFE) and low-energy magnetic excitations in orthochromite TmCrO3 with controls of temperature and magnetic field using high-resolution magneto-terahertz (THz) time-domain spectroscopy. The THz energy spectrum spanning 0.5-10 meV possesses a low-frequency spin-excitation (magnon) mode and a multitude of CFE modes at 10 K, all of which uniquely embody a range of phenomena. For the magnon mode, a temperature dependence of peak frequency is induced by magnetic interactions between Tm and Cr subsystems. While a change from blue to red shift of peak frequency of this mode marks the magnetization reversal transition, the spin-reorientation temperature and change of magnetic anisotropy are depicted by different features of field and temperature dependent peak frequency dynamics. The modes corresponding to CFE are robust and laden with a multitude of submodes, which are attributes of nontrivial interactions across different transitions. These modes are suppressed only upon substitution of Tb3+ at the Tm3+ site, which suggests a dominant role of single-ion anisotropy in controlling entire THz excitation spectra. Overall, this remarkable range of phenomena seen through the unique lens of all-optical THz tools provides deeper insights into the origin of magnetic phases in systems with complex interactions between rare-earth and transition metal ions and provides a multitude of novel combinations of closely spaced modes for emerging hybrid spin-wave computation.
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Affiliation(s)
- Gaurav Dubey
- Department of Physics, Indian Institute of Science Education and Research, Bhopal 462066, India
| | - Brijesh Singh Mehra
- Department of Physics, Indian Institute of Science Education and Research, Bhopal 462066, India
| | - Sanjeev Kumar
- Department of Physics, Indian Institute of Science Education and Research, Bhopal 462066, India
| | - Ayyappan Shyam
- Department of Physics, Indian Institute of Science Education and Research, Bhopal 462066, India
| | - Karan Datt Sharma
- Department of Physics, Indian Institute of Science Education and Research, Bhopal 462066, India
| | - Megha Vagadia
- Department of Physics, Indian Institute of Science Education and Research, Bhopal 462066, India
- Department of Physics, Saurashtra University, Rajkot, Gujarat 360005, India
| | - Dhanvir Singh Rana
- Department of Physics, Indian Institute of Science Education and Research, Bhopal 462066, India
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2
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Winczewski M, Mandarino A, Suarez G, Alicki R, Horodecki M. Intermediate-times dilemma for open quantum system: Filtered approximation to the refined weak-coupling limit. Phys Rev E 2024; 110:024110. [PMID: 39295025 DOI: 10.1103/physreve.110.024110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 06/26/2024] [Indexed: 09/21/2024]
Abstract
The famous Davies-GKSL secular Markovian master equation is tremendously successful in approximating the evolution of open quantum systems in terms of just a few parameters. However, the fully secular Davies-GKSL equation fails to accurately describe timescales short enough, i.e., comparable to the inverse of differences of frequencies present in the system of interest. A complementary approach that works well for short times but is not suitable after this short interval is known as the quasisecular master equation. Still, both approaches fail to have any faithful dynamics in the intermediate-time interval. Simultaneously, descriptions of dynamics that apply to the aforementioned "gray zone" often are computationally much more complex than master equations or are mathematically not well-structured. The filtered approximation (FA) to the refined weak-coupling limit has the simplistic spirit of the Davies-GKSL equation and allows capturing the dynamics in the intermediate-time regime. At the same time, our non-Markovian equation yields completely positive dynamics. We exemplify the performance of the FA equation in the cases of the spin-boson system and qutrit-boson system in which two distant timescales appear.
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3
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Brennan N, Noble CA, Tang J, Ziebel ME, Bae YJ. Important Elements of Spin-Exciton and Magnon-Exciton Coupling. ACS PHYSICAL CHEMISTRY AU 2024; 4:322-327. [PMID: 39069974 PMCID: PMC11273446 DOI: 10.1021/acsphyschemau.4c00010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 07/30/2024]
Abstract
The recent discovery of spin-exciton and magnon-exciton coupling in a layered antiferromagnetic semiconductor, CrSBr, is both fundamentally intriguing and technologically significant. This discovery unveils a unique capability to optically access and manipulate spin information using excitons, opening doors to applications in quantum interconnects, quantum photonics, and opto-spintronics. Despite their remarkable potential, materials exhibiting spin-exciton and magnon-exciton coupling remain limited. To broaden the library of such materials, we explore key parameters for achieving and tuning spin-exciton and magnon-exciton couplings. We begin by examining the mechanisms of couplings in CrSBr and drawing comparisons with other recently identified two-dimensional magnetic semiconductors. Furthermore, we propose various promising scenarios for spin-exciton coupling, laying the groundwork for future research endeavors.
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Affiliation(s)
- Nicholas
J. Brennan
- Department
of Physics, Cornell University, Ithaca, New York 14853, United States
| | - Cora A. Noble
- Department
of Chemistry and Chemical Biology, Cornell
University, Ithaca, New York 14853, United States
| | - Jiacheng Tang
- Department
of Chemistry and Chemical Biology, Cornell
University, Ithaca, New York 14853, United States
| | - Michael E. Ziebel
- Department
of Chemistry, Columbia University, New York, New York 10027, United States
| | - Youn Jue Bae
- Department
of Chemistry and Chemical Biology, Cornell
University, Ithaca, New York 14853, United States
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4
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De A, Pal S, Hellwig O, Barman A. Spin-wave dynamics in perpendicularly magnetized antidot multilayers. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2024; 36:415802. [PMID: 38955338 DOI: 10.1088/1361-648x/ad5e54] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 07/01/2024] [Indexed: 07/04/2024]
Abstract
Using all-optical time-resolved magneto-optical Kerr effect measurements we demonstrate an efficient modulation of the spin-wave (SW) dynamics via the bias magnetic field orientation around nanoscale diamond shaped antidots that are arranged on a square lattice within a [Co(0.75 nm)/Pd(0.9 nm)]8multilayer with perpendicular magnetic anisotropy (PMA). Micromagnetic modeling of the experimental results reveals that the SW modes in the lower frequency regime are related to narrow shell regions around the antidots, where in-plane (IP) domain structures are formed due to the reduced PMA, caused by Ga+ion irradiation during the focused ion beam milling process of antidot fabrication. The IP direction of the shell magnetization undergoes a striking change with magnetic field orientation, leading to the sharp variation of the edge localized (shell) SW modes. Nevertheless, the coupling between such edge localized and bulk SWs for different orientations of bias field in PMA systems gives rise to interesting Physics and attests to new prospects for developing energy efficient and hybrid-system-based next-generation nanoscale magnonic devices.
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Affiliation(s)
- Anulekha De
- Department of Condensed Matter and Materials Physics, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700106, India
- Department of Physics and Research Center OPTIMAS, Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau, 67663 Kaiserslautern, Germany
| | - Semanti Pal
- Department of Condensed Matter and Materials Physics, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700106, India
- Department of Physics, East Calcutta Girls' College, Kolkata 700089, India
| | - Olav Hellwig
- Institute of Physics, Chemnitz University of Technology, Chemnitz 09107, Germany
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
| | - Anjan Barman
- Department of Condensed Matter and Materials Physics, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700106, India
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5
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Flebus B, Grundler D, Rana B, Otani Y, Barsukov I, Barman A, Gubbiotti G, Landeros P, Akerman J, Ebels U, Pirro P, Demidov VE, Schultheiss K, Csaba G, Wang Q, Ciubotaru F, Nikonov DE, Che P, Hertel R, Ono T, Afanasiev D, Mentink J, Rasing T, Hillebrands B, Kusminskiy SV, Zhang W, Du CR, Finco A, van der Sar T, Luo YK, Shiota Y, Sklenar J, Yu T, Rao J. The 2024 magnonics roadmap. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2024; 36:363501. [PMID: 38565125 DOI: 10.1088/1361-648x/ad399c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 04/02/2024] [Indexed: 04/04/2024]
Abstract
Magnonicsis a research field that has gained an increasing interest in both the fundamental and applied sciences in recent years. This field aims to explore and functionalize collective spin excitations in magnetically ordered materials for modern information technologies, sensing applications and advanced computational schemes. Spin waves, also known as magnons, carry spin angular momenta that allow for the transmission, storage and processing of information without moving charges. In integrated circuits, magnons enable on-chip data processing at ultrahigh frequencies without the Joule heating, which currently limits clock frequencies in conventional data processors to a few GHz. Recent developments in the field indicate that functional magnonic building blocks for in-memory computation, neural networks and Ising machines are within reach. At the same time, the miniaturization of magnonic circuits advances continuously as the synergy of materials science, electrical engineering and nanotechnology allows for novel on-chip excitation and detection schemes. Such circuits can already enable magnon wavelengths of 50 nm at microwave frequencies in a 5G frequency band. Research into non-charge-based technologies is urgently needed in view of the rapid growth of machine learning and artificial intelligence applications, which consume substantial energy when implemented on conventional data processing units. In its first part, the 2024 Magnonics Roadmap provides an update on the recent developments and achievements in the field of nano-magnonics while defining its future avenues and challenges. In its second part, the Roadmap addresses the rapidly growing research endeavors on hybrid structures and magnonics-enabled quantum engineering. We anticipate that these directions will continue to attract researchers to the field and, in addition to showcasing intriguing science, will enable unprecedented functionalities that enhance the efficiency of alternative information technologies and computational schemes.
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Affiliation(s)
- Benedetta Flebus
- Department of Physics, Boston College, 140 Commonwealth Avenue, Chestnut Hill, MA 02467, United States of America
| | - Dirk Grundler
- Laboratory of Nanoscale Magnetic Materials and Magnonics, Institute of Materials (IMX), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
- Institute of Electrical and Micro Engineering (IEM), EPFL, Lausanne 1015, Switzerland
| | - Bivas Rana
- Institute of Spintronics and Quantum Information (ISQI), Faculty of Physics, Adam Mickiewicz University, Poznań, Poland
| | - YoshiChika Otani
- Center for Emergent Matter Science, RIKEN, Wako, Japan
- Institute for Solid State Physics (ISSP), University of Tokyo, Kashiwa, Japan
| | - Igor Barsukov
- Department of Physics and Astronomy, University of California, Riverside, United States of America
| | - Anjan Barman
- S N Bose National Centre for Basic Sciences, Salt Lake, Sector III, Kolkata, India
| | | | - Pedro Landeros
- Universidad Técnica Federico Santa María, Av. España 1680, Valparaíso, Chile
| | - Johan Akerman
- Department of Physics, University of Gothenburg, Gothenburg, Sweden
| | - Ursula Ebels
- Univ. Grenoble Alpes, CEA, CNRS, Grenoble-INP, SPINTEC, Grenoble 38000, France
| | - Philipp Pirro
- Fachbereich Physik and Landesforschungszentrum OPTIMAS, RPTU Kaiserslautern-Landau, Kaiserslautern, Germany
| | | | | | - Gyorgy Csaba
- Pázmány Péter Catholic University, Budapest, Hungary
| | - Qi Wang
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | | | - Dmitri E Nikonov
- Components Research, Intel Corp., Hillsboro, OR 97124, United States of America
| | - Ping Che
- Laboratoire Albert Fert, CNRS, Thales, Université Paris-Saclay, Palaiseau 91767, France
| | - Riccardo Hertel
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, Strasbourg 67000, France
| | - Teruo Ono
- Institute for Chemical Research, Kyoto University, Center for Spintronics Research Network, Kyoto University, Uji, Japan
| | - Dmytro Afanasiev
- Radboud University, Institute for Molecules and Materials, Nijmegen, The Netherlands
| | - Johan Mentink
- Radboud University, Institute for Molecules and Materials, Nijmegen, The Netherlands
| | - Theo Rasing
- Radboud University, Institute for Molecules and Materials, Nijmegen, The Netherlands
| | - Burkard Hillebrands
- Fachbereich Physik and Landesforschungszentrum OPTIMAS, RPTU Kaiserslautern-Landau, Kaiserslautern, Germany
| | - Silvia Viola Kusminskiy
- RWTH Aachen University, Aachen and Max Planck Institute for the Physics of Light, Erlangen, Germany
| | - Wei Zhang
- University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States of America
| | - Chunhui Rita Du
- School of Physics, Georgia Institute of Technology, Atlanta, GA 30332, United States of America
| | - Aurore Finco
- Laboratoire Charles Coulomb, Université de Montpellier, CNRS, Montpellier 34095, France
| | - Toeno van der Sar
- Department of Quantum Nanoscience, Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, Delft 2628 CJ, The Netherlands
| | - Yunqiu Kelly Luo
- Department of Physics and Astronomy, University of Southern California, Los Angeles, CA, 90089, United States of America
- Kavli Institute at Cornell, Ithaca, NY 14853, United States of America
| | - Yoichi Shiota
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Joseph Sklenar
- Wayne State University, Detroit, MI, United States of America
| | - Tao Yu
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Jinwei Rao
- ShanghaiTech University, Shanghai, People's Republic of China
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6
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Pan XF, Li PB, Hei XL, Zhang X, Mochizuki M, Li FL, Nori F. Magnon-Skyrmion Hybrid Quantum Systems: Tailoring Interactions via Magnons. PHYSICAL REVIEW LETTERS 2024; 132:193601. [PMID: 38804949 DOI: 10.1103/physrevlett.132.193601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 01/08/2024] [Accepted: 04/08/2024] [Indexed: 05/29/2024]
Abstract
Coherent and dissipative interactions between different quantum systems are essential for the construction of hybrid quantum systems and the investigation of novel quantum phenomena. Here, we propose and analyze a magnon-skyrmion hybrid quantum system, consisting of a micromagnet and nearby magnetic skyrmions. We predict a strong-coupling mechanism between the magnonic mode of the micromagnet and the quantized helicity degree of freedom of the skyrmion. We show that with this hybrid setup it is possible to induce magnon-mediated nonreciprocal interactions and responses between distant skyrmion qubits or between skyrmion qubits and other quantum systems like superconducting qubits. This work provides a quantum platform for the investigation of diverse quantum effects and quantum information processing with magnetic microstructures.
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Affiliation(s)
- Xue-Feng Pan
- Ministry of Education Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Shaanxi Province Key Laboratory of Quantum Information and Quantum Optoelectronic Devices, School of Physics, Xi'an Jiaotong University, Xi'an 710049, China
| | - Peng-Bo Li
- Ministry of Education Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Shaanxi Province Key Laboratory of Quantum Information and Quantum Optoelectronic Devices, School of Physics, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xin-Lei Hei
- Ministry of Education Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Shaanxi Province Key Laboratory of Quantum Information and Quantum Optoelectronic Devices, School of Physics, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xichao Zhang
- Department of Applied Physics, Waseda University, Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Masahito Mochizuki
- Department of Applied Physics, Waseda University, Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Fu-Li Li
- Ministry of Education Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Shaanxi Province Key Laboratory of Quantum Information and Quantum Optoelectronic Devices, School of Physics, Xi'an Jiaotong University, Xi'an 710049, China
| | - Franco Nori
- Theoretical Quantum Physics Laboratory, Cluster for Pioneering Research, RIKEN, Wakoshi, Saitama 351-0198, Japan
- Center for Quantum Computing, RIKEN, Wakoshi, Saitama 351-0198, Japan
- Physics Department, The University of Michigan, Ann Arbor, Michigan 48109-1040, USA
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7
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Wang YY, Wang YX, van Geldern S, Connolly T, Clerk AA, Wang C. Dispersive nonreciprocity between a qubit and a cavity. SCIENCE ADVANCES 2024; 10:eadj8796. [PMID: 38630825 PMCID: PMC11023507 DOI: 10.1126/sciadv.adj8796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 03/13/2024] [Indexed: 04/19/2024]
Abstract
The dispersive interaction between a qubit and a cavity is ubiquitous in circuit and cavity quantum electrodynamics. It describes the frequency shift of one quantum mode in response to excitations in the other and, in closed systems, is necessarily bidirectional, i.e., reciprocal. Here, we present an experimental study of a nonreciprocal dispersive-type interaction between a transmon qubit and a superconducting cavity, arising from a common coupling to dissipative intermediary modes with broken time reversal symmetry. We characterize the qubit-cavity dynamics, including asymmetric frequency pulls and photon shot noise dephasing, under varying degrees of nonreciprocity by tuning the magnetic field bias of a ferrite component in situ. We introduce a general master equation model for nonreciprocal interactions in the dispersive regime, providing a compact description of the observed qubit-cavity dynamics agnostic to the intermediary system. Our result provides an example of quantum nonreciprocal phenomena beyond the typical paradigms of non-Hermitian Hamiltonians and cascaded systems.
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Affiliation(s)
- Ying-Ying Wang
- Department of Physics, University of Massachusetts-Amherst, Amherst, MA, USA
| | - Yu-Xin Wang
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, USA
| | - Sean van Geldern
- Department of Physics, University of Massachusetts-Amherst, Amherst, MA, USA
| | - Thomas Connolly
- Department of Physics, University of Massachusetts-Amherst, Amherst, MA, USA
| | - Aashish A. Clerk
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, USA
| | - Chen Wang
- Department of Physics, University of Massachusetts-Amherst, Amherst, MA, USA
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8
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Xu Q, Cheung HFH, Cormode DS, Puel TO, Pal S, Yusuf H, Chilcote M, Flatté ME, Johnston‐Halperin E, Fuchs GD. Strong Photon-Magnon Coupling Using a Lithographically Defined Organic Ferrimagnet. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2310032. [PMID: 38279583 PMCID: PMC11005739 DOI: 10.1002/advs.202310032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Indexed: 01/28/2024]
Abstract
A cavity-magnonic system composed of a superconducting microwave resonator coupled to a magnon mode hosted by the organic-based ferrimagnet vanadium tetracyanoethylene (V[TCNE]x) is demonstrated. This work is motivated by the challenge of scalably integrating a low-damping magnetic system with planar superconducting circuits. V[TCNE]x has ultra-low intrinsic damping, can be grown at low processing temperatures on arbitrary substrates, and can be patterned via electron beam lithography. The devices operate in the strong coupling regime, with a cooperativity exceeding 1000 for coupling between the Kittel mode and the resonator mode at T≈0.4 K, suitable for scalable quantum circuit integration. Higher-order magnon modes are also observed with much narrower linewidths than the Kittel mode. This work paves the way for high-cooperativity hybrid quantum devices in which magnonic circuits can be designed and fabricated as easily as electrical wires.
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Affiliation(s)
- Qin Xu
- Department of PhysicsCornell UniversityIthacaNY14853USA
| | | | | | - Tharnier O. Puel
- Department of Physics and AstronomyUniversity of IowaIowa CityIA52242USA
| | - Srishti Pal
- School of Applied and Engineering PhysicsCornell UniversityIthacaNY14853USA
| | - Huma Yusuf
- Department of PhysicsThe Ohio State UniversityColumbusOH43210USA
| | - Michael Chilcote
- School of Applied and Engineering PhysicsCornell UniversityIthacaNY14853USA
| | - Michael E. Flatté
- Department of Physics and AstronomyUniversity of IowaIowa CityIA52242USA
| | | | - Gregory D. Fuchs
- School of Applied and Engineering PhysicsCornell UniversityIthacaNY14853USA
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9
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Bejarano M, Goncalves FJT, Hache T, Hollenbach M, Heins C, Hula T, Körber L, Heinze J, Berencén Y, Helm M, Fassbender J, Astakhov GV, Schultheiss H. Parametric magnon transduction to spin qubits. SCIENCE ADVANCES 2024; 10:eadi2042. [PMID: 38507479 PMCID: PMC10954226 DOI: 10.1126/sciadv.adi2042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 02/15/2024] [Indexed: 03/22/2024]
Abstract
The integration of heterogeneous modular units for building large-scale quantum networks requires engineering mechanisms that allow suitable transduction of quantum information. Magnon-based transducers are especially attractive due to their wide range of interactions and rich nonlinear dynamics, but most of the work to date has focused on linear magnon transduction in the traditional system composed of yttrium iron garnet and diamond, two materials with difficult integrability into wafer-scale quantum circuits. In this work, we present a different approach by using wafer-compatible materials to engineer a hybrid transducer that exploits magnon nonlinearities in a magnetic microdisc to address quantum spin defects in silicon carbide. The resulting interaction scheme points to the unique transduction behavior that can be obtained when complementing quantum systems with nonlinear magnonics.
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Affiliation(s)
- Mauricio Bejarano
- Helmholtz-Zentrum Dresden-Rossendorf, Institute for Ion Beam Physics and Materials Research, 01328 Dresden, Germany
- Faculty of Electrical and Computer Engineering, Technical University of Dresden, 01062 Dresden, Germany
| | - Francisco J. T. Goncalves
- Helmholtz-Zentrum Dresden-Rossendorf, Institute for Ion Beam Physics and Materials Research, 01328 Dresden, Germany
| | - Toni Hache
- Helmholtz-Zentrum Dresden-Rossendorf, Institute for Ion Beam Physics and Materials Research, 01328 Dresden, Germany
- Max Planck Institute for Solid State Research, 70569 Stuttgart, Germany
| | - Michael Hollenbach
- Helmholtz-Zentrum Dresden-Rossendorf, Institute for Ion Beam Physics and Materials Research, 01328 Dresden, Germany
- Faculty of Physics, Technical University of Dresden, 01062 Dresden, Germany
| | - Christopher Heins
- Helmholtz-Zentrum Dresden-Rossendorf, Institute for Ion Beam Physics and Materials Research, 01328 Dresden, Germany
| | - Tobias Hula
- Helmholtz-Zentrum Dresden-Rossendorf, Institute for Ion Beam Physics and Materials Research, 01328 Dresden, Germany
- Institute of Physics, Technical University of Chemnitz, 09107 Chemnitz, Germany
| | - Lukas Körber
- Helmholtz-Zentrum Dresden-Rossendorf, Institute for Ion Beam Physics and Materials Research, 01328 Dresden, Germany
- Faculty of Physics, Technical University of Dresden, 01062 Dresden, Germany
| | - Jakob Heinze
- Helmholtz-Zentrum Dresden-Rossendorf, Institute for Ion Beam Physics and Materials Research, 01328 Dresden, Germany
| | - Yonder Berencén
- Helmholtz-Zentrum Dresden-Rossendorf, Institute for Ion Beam Physics and Materials Research, 01328 Dresden, Germany
| | - Manfred Helm
- Helmholtz-Zentrum Dresden-Rossendorf, Institute for Ion Beam Physics and Materials Research, 01328 Dresden, Germany
- Faculty of Physics, Technical University of Dresden, 01062 Dresden, Germany
| | - Jürgen Fassbender
- Helmholtz-Zentrum Dresden-Rossendorf, Institute for Ion Beam Physics and Materials Research, 01328 Dresden, Germany
- Faculty of Physics, Technical University of Dresden, 01062 Dresden, Germany
| | - Georgy V. Astakhov
- Helmholtz-Zentrum Dresden-Rossendorf, Institute for Ion Beam Physics and Materials Research, 01328 Dresden, Germany
| | - Helmut Schultheiss
- Helmholtz-Zentrum Dresden-Rossendorf, Institute for Ion Beam Physics and Materials Research, 01328 Dresden, Germany
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10
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Xu J, Zhong C, Zhuang S, Qian C, Jiang Y, Pishehvar A, Han X, Jin D, Jornet JM, Zhen B, Hu J, Jiang L, Zhang X. Slow-Wave Hybrid Magnonics. PHYSICAL REVIEW LETTERS 2024; 132:116701. [PMID: 38563939 DOI: 10.1103/physrevlett.132.116701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 12/14/2023] [Accepted: 02/08/2024] [Indexed: 04/04/2024]
Abstract
Cavity magnonics is an emerging research area focusing on the coupling between magnons and photons. Despite its great potential for coherent information processing, it has been long restricted by the narrow interaction bandwidth. In this Letter, we theoretically propose and experimentally demonstrate a novel approach to achieve broadband photon-magnon coupling by adopting slow waves on engineered microwave waveguides. To the best of our knowledge, this is the first time that slow wave is combined with hybrid magnonics. Its unique properties promise great potentials for both fundamental research and practical applications, for instance, by deepening our understanding of the light-matter interaction in the slow wave regime and providing high-efficiency spin wave transducers. The device concept can be extended to other systems such as optomagnonics and magnomechanics, opening up new directions for hybrid magnonics.
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Affiliation(s)
- Jing Xu
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Changchun Zhong
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA
| | - Shihao Zhuang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Chen Qian
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Yu Jiang
- Department of Electrical and Computer Engineering, Northeastern University, Boston, Massachusetts 02115, USA
| | - Amin Pishehvar
- Department of Electrical and Computer Engineering, Northeastern University, Boston, Massachusetts 02115, USA
| | - Xu Han
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Dafei Jin
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, USA
- Department of Physics and Astronomy, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Josep M Jornet
- Department of Electrical and Computer Engineering, Northeastern University, Boston, Massachusetts 02115, USA
| | - Bo Zhen
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Jiamian Hu
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Liang Jiang
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA
| | - Xufeng Zhang
- Department of Electrical and Computer Engineering, Northeastern University, Boston, Massachusetts 02115, USA
- Department of Physics, Northeastern University, Boston, Massachusetts 02115, USA
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11
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Li Y, Zhang Z, Liu C, Zheng D, Fang B, Zhang C, Chen A, Ma Y, Wang C, Liu H, Shen K, Manchon A, Xiao JQ, Qiu Z, Hu CM, Zhang X. Reconfigurable spin current transmission and magnon-magnon coupling in hybrid ferrimagnetic insulators. Nat Commun 2024; 15:2234. [PMID: 38472180 DOI: 10.1038/s41467-024-46330-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 02/22/2024] [Indexed: 03/14/2024] Open
Abstract
Coherent spin waves possess immense potential in wave-based information computation, storage, and transmission with high fidelity and ultra-low energy consumption. However, despite their seminal importance for magnonic devices, there is a paucity of both structural prototypes and theoretical frameworks that regulate the spin current transmission and magnon hybridization mediated by coherent spin waves. Here, we demonstrate reconfigurable coherent spin current transmission, as well as magnon-magnon coupling, in a hybrid ferrimagnetic heterostructure comprising epitaxial Gd3Fe5O12 and Y3Fe5O12 insulators. By adjusting the compensated moment in Gd3Fe5O12, magnon-magnon coupling was achieved and engineered with pronounced anticrossings between two Kittel modes, accompanied by divergent dissipative coupling approaching the magnetic compensation temperature of Gd3Fe5O12 (TM,GdIG), which were modeled by coherent spin pumping. Remarkably, we further identified, both experimentally and theoretically, a drastic variation in the coherent spin wave-mediated spin current across TM,GdIG, which manifested as a strong dependence on the relative alignment of magnetic moments. Our findings provide significant fundamental insight into the reconfiguration of coherent spin waves and offer a new route towards constructing artificial magnonic architectures.
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Affiliation(s)
- Yan Li
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Zhitao Zhang
- Guangdong Provincial Key Laboratory of Semiconductor, Optoelectronic Materials and Intelligent Photonic Systems, School of Science, Harbin Institute of Technology (Shenzhen), 518055, Shenzhen, China
| | - Chen Liu
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Dongxing Zheng
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Bin Fang
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Chenhui Zhang
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Aitian Chen
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Yinchang Ma
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Chunmei Wang
- Guangdong Provincial Key Laboratory of Semiconductor, Optoelectronic Materials and Intelligent Photonic Systems, School of Science, Harbin Institute of Technology (Shenzhen), 518055, Shenzhen, China
| | - Haoliang Liu
- Guangdong Provincial Key Laboratory of Semiconductor, Optoelectronic Materials and Intelligent Photonic Systems, School of Science, Harbin Institute of Technology (Shenzhen), 518055, Shenzhen, China.
| | - Ka Shen
- The Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, 100875, Beijing, China.
| | | | - John Q Xiao
- Department of Physics and Astronomy, University of Delaware, Newark, Newark, DE, 19716, USA
| | - Ziqiang Qiu
- Department of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA
| | - Can-Ming Hu
- Department of Physics and Astronomy, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada
| | - Xixiang Zhang
- Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.
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12
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Wang Y, Zhang Y, Li C, Wei J, He B, Xu H, Xia J, Luo X, Li J, Dong J, He W, Yan Z, Yang W, Ma F, Chai G, Yan P, Wan C, Han X, Yu G. Ultrastrong to nearly deep-strong magnon-magnon coupling with a high degree of freedom in synthetic antiferromagnets. Nat Commun 2024; 15:2077. [PMID: 38453947 PMCID: PMC10920873 DOI: 10.1038/s41467-024-46474-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 02/28/2024] [Indexed: 03/09/2024] Open
Abstract
Ultrastrong and deep-strong coupling are two coupling regimes rich in intriguing physical phenomena. Recently, hybrid magnonic systems have emerged as promising candidates for exploring these regimes, owing to their unique advantages in quantum engineering. However, because of the relatively weak coupling between magnons and other quasiparticles, ultrastrong coupling is predominantly realized at cryogenic temperatures, while deep-strong coupling remains to be explored. In our work, we achieve both theoretical and experimental realization of room-temperature ultrastrong magnon-magnon coupling in synthetic antiferromagnets with intrinsic asymmetry of magnetic anisotropy. Unlike most ultrastrong coupling systems, where the counter-rotating coupling strength g2 is strictly equal to the co-rotating coupling strength g1, our systems allow for highly tunable g1 and g2. This high degree of freedom also enables the realization of normalized g1 or g2 larger than 0.5. Particularly, our experimental findings reveal that the maximum observed g1 is nearly identical to the bare frequency, with g1/ω0 = 0.963, indicating a close realization of deep-strong coupling within our hybrid magnonic systems. Our results highlight synthetic antiferromagnets as platforms for exploring unconventional ultrastrong and even deep-strong coupling regimes, facilitating the further exploration of quantum phenomena.
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Affiliation(s)
- Yuqiang Wang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yu Zhang
- Jiangsu Key Laboratory of Opto-Electronic Technology, School of Physics and Technology, Nanjing Normal University, Nanjing, 210046, China
| | - Chaozhong Li
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Jinwu Wei
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Bin He
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hongjun Xu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, China
| | - Jihao Xia
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xuming Luo
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jiahui Li
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jing Dong
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, China
| | - Wenqing He
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhengren Yan
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenlong Yang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fusheng Ma
- Jiangsu Key Laboratory of Opto-Electronic Technology, School of Physics and Technology, Nanjing Normal University, Nanjing, 210046, China.
| | - Guozhi Chai
- Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, China
| | - Peng Yan
- School of Electronic Science and Engineering and State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Caihua Wan
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiufeng Han
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, China
| | - Guoqiang Yu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.
- Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, China.
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13
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Huang KW, Wang X, Qiu QY, Xiong H. Nonreciprocal magnon blockade via the Barnett effect. OPTICS LETTERS 2024; 49:758-761. [PMID: 38300108 DOI: 10.1364/ol.512264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 01/15/2024] [Indexed: 02/02/2024]
Abstract
We propose a scheme to achieve nonreciprocal magnon blockade via the Barnett effect in a magnon-based hybrid system. Due to the rotating yttrium iron garnet (YIG) sphere, the Barnett shift induced by the Barnett effect can be tuned from positive to negative via controlling magnetic field direction, leading to nonreciprocity. We show that a nonreciprocal unconventional magnon blockade (UMB) can emerge only from one magnetic field direction but not from the other side. Particularly, by further tuning system parameters, we simultaneously observe a nonreciprocal conventional magnon blockade (CMB) and a nonreciprocal UMB. This result achieves a switch between efficiency (UMB) and purity (CMB) of a single-magnon blockade. Interestingly, stronger UMB can be reached under stronger qubit-magnon coupling, even the strong coupling regime. Moreover, the nonreciprocity of the magnon blockade is sensitive to temperature. This work opens up a way for achieving quantum nonreciprocal magnetic devices and chiral magnon communications.
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14
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Fukami M, Marcks JC, Candido DR, Weiss LR, Soloway B, Sullivan SE, Delegan N, Heremans FJ, Flatté ME, Awschalom DD. Magnon-mediated qubit coupling determined via dissipation measurements. Proc Natl Acad Sci U S A 2024; 121:e2313754120. [PMID: 38165926 PMCID: PMC10786302 DOI: 10.1073/pnas.2313754120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 11/14/2023] [Indexed: 01/04/2024] Open
Abstract
Controlled interaction between localized and delocalized solid-state spin systems offers a compelling platform for on-chip quantum information processing with quantum spintronics. Hybrid quantum systems (HQSs) of localized nitrogen-vacancy (NV) centers in diamond and delocalized magnon modes in ferrimagnets-systems with naturally commensurate energies-have recently attracted significant attention, especially for interconnecting isolated spin qubits at length-scales far beyond those set by the dipolar coupling. However, despite extensive theoretical efforts, there is a lack of experimental characterization of the magnon-mediated interaction between NV centers, which is necessary to develop such hybrid quantum architectures. Here, we experimentally determine the magnon-mediated NV-NV coupling from the magnon-induced self-energy of NV centers. Our results are quantitatively consistent with a model in which the NV center is coupled to magnons by dipolar interactions. This work provides a versatile tool to characterize HQSs in the absence of strong coupling, informing future efforts to engineer entangled solid-state systems.
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Affiliation(s)
- Masaya Fukami
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL60637
| | - Jonathan C. Marcks
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL60637
- Center for Molecular Engineering and Materials Science Division, Argonne National Laboratory, Lemont, IL60439
| | - Denis R. Candido
- Department of Physics and Astronomy, University of Iowa, Iowa City, IA52242
| | - Leah R. Weiss
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL60637
- Advanced Institute for Materials Research, Tohoku University, Sendai980-8577, Japan
| | - Benjamin Soloway
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL60637
| | - Sean E. Sullivan
- Center for Molecular Engineering and Materials Science Division, Argonne National Laboratory, Lemont, IL60439
| | - Nazar Delegan
- Center for Molecular Engineering and Materials Science Division, Argonne National Laboratory, Lemont, IL60439
| | - F. Joseph Heremans
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL60637
- Center for Molecular Engineering and Materials Science Division, Argonne National Laboratory, Lemont, IL60439
| | - Michael E. Flatté
- Department of Physics and Astronomy, University of Iowa, Iowa City, IA52242
- Department of Applied Physics, Eindhoven University of Technology, Eindhoven5600 MB, Netherlands
| | - David D. Awschalom
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL60637
- Center for Molecular Engineering and Materials Science Division, Argonne National Laboratory, Lemont, IL60439
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15
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Wang Z, Zhang M, Wong Y, Zhong C, Jiang L. Optimized Protocols for Duplex Quantum Transduction. PHYSICAL REVIEW LETTERS 2023; 131:220802. [PMID: 38101338 DOI: 10.1103/physrevlett.131.220802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 10/25/2023] [Indexed: 12/17/2023]
Abstract
Quantum transducers convert quantum signals through hybrid interfaces of physical platforms in quantum networks. Modeled as quantum communication channels, performance of unidirectional quantum transduction can be measured by the quantum channel capacity. However, characterizing performance of quantum transducers used for duplex quantum transduction where signals are converted bidirectionally remains an open question. Here, we propose rate regions to characterize the performance of duplex quantum transduction. Using this tool, we find that quantum transducers optimized for simultaneous duplex transduction can outperform strategies based on the standard protocol of time-shared unidirectional transduction. Integrated over the frequency domain, we demonstrate that the rate region can also characterize quantum transducers with finite bandwidth.
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Affiliation(s)
- Zhaoyou Wang
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA
| | - Mengzhen Zhang
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA
| | - Yat Wong
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA
| | - Changchun Zhong
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA
| | - Liang Jiang
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, USA
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16
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Ueda H, Mankowsky R, Paris E, Sander M, Deng Y, Liu B, Leroy L, Nag A, Skoropata E, Wang C, Ukleev V, Perren GS, Dössegger J, Gurung S, Svetina C, Abreu E, Savoini M, Kimura T, Patthey L, Razzoli E, Lemke HT, Johnson SL, Staub U. Non-equilibrium dynamics of spin-lattice coupling. Nat Commun 2023; 14:7778. [PMID: 38012165 PMCID: PMC10681982 DOI: 10.1038/s41467-023-43581-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Accepted: 11/14/2023] [Indexed: 11/29/2023] Open
Abstract
Quantifying the dynamics of normal modes and how they interact with other excitations is of central importance in condensed matter. Spin-lattice coupling is relevant to several sub-fields of condensed matter physics; examples include spintronics, high-Tc superconductivity, and topological materials. However, experimental approaches that can directly measure it are rare and incomplete. Here we use time-resolved X-ray diffraction to directly access the ultrafast motion of atoms and spins following the coherent excitation of an electromagnon in a multiferroic hexaferrite. One striking outcome is the different phase shifts relative to the driving field of the two different components. This phase shift provides insight into the excitation process of such a coupled mode. This direct observation of combined lattice and magnetization dynamics paves the way to access the mode-selective spin-lattice coupling strength, which remains a missing fundamental parameter for ultrafast control of magnetism and is relevant to a wide variety of materials.
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Affiliation(s)
- Hiroki Ueda
- SwissFEL, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland.
- Swiss Light Source, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland.
| | - Roman Mankowsky
- SwissFEL, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland
| | - Eugenio Paris
- SwissFEL, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland
| | - Mathias Sander
- SwissFEL, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland
| | - Yunpei Deng
- SwissFEL, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland
| | - Biaolong Liu
- SwissFEL, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland
| | - Ludmila Leroy
- Swiss Light Source, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland
| | - Abhishek Nag
- SwissFEL, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland
| | - Elizabeth Skoropata
- Swiss Light Source, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland
| | - Chennan Wang
- Départment de Physique and Fribourg Center for Nanomaterials, Université de Fribourg, 1700, Fribourg, Switzerland
| | - Victor Ukleev
- Swiss Light Source, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Straße 15, 12489, Berlin, Germany
| | | | - Janine Dössegger
- Institute for Quantum Electronics, Physics Department, ETH Zurich, 8093, Zurich, Switzerland
| | - Sabina Gurung
- Institute for Quantum Electronics, Physics Department, ETH Zurich, 8093, Zurich, Switzerland
| | - Cristian Svetina
- SwissFEL, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland
- Madrid Institute for Advanced Studies, IMDEA Nanociencia, Ciudad Universitaria de Cantoblanco, Calle Faraday 9, Madrid, 28049, Spain
| | - Elsa Abreu
- Institute for Quantum Electronics, Physics Department, ETH Zurich, 8093, Zurich, Switzerland
| | - Matteo Savoini
- Institute for Quantum Electronics, Physics Department, ETH Zurich, 8093, Zurich, Switzerland
| | - Tsuyoshi Kimura
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - Luc Patthey
- SwissFEL, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland
| | - Elia Razzoli
- SwissFEL, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland
| | | | - Steven Lee Johnson
- SwissFEL, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland
- Institute for Quantum Electronics, Physics Department, ETH Zurich, 8093, Zurich, Switzerland
| | - Urs Staub
- Swiss Light Source, Paul Scherrer Institute, 5232, Villigen-PSI, Switzerland.
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17
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Yan WB, Man ZX, Zhang YJ, Xia YJ. Temperature-related single-photon transport in a waveguide QED. OPTICS LETTERS 2023; 48:5831-5834. [PMID: 37966730 DOI: 10.1364/ol.506257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 10/16/2023] [Indexed: 11/16/2023]
Abstract
We propose a scheme to realize a novel, to the best of our knowledge, scenario that the single-photon transport in a one-dimensional waveguide can be affected by the temperature. The scheme is composed by a waveguide-atom interacting structure linked to a thermal bath. The single-photon reflection (or transmission) coefficient can be controlled by adjusting the temperature of the thermal bath. This provides a thermal control of the single-photon transport. Moreover, the scheme provides an approach for implementing the optical thermometer, in which the temperature of the thermal bath is estimated by measuring the photonic transport. The thermometer can accurately measure the temperature in the low-temperature region.
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18
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Römling ALE, Vivas-Viaña A, Muñoz CS, Kamra A. Resolving Nonclassical Magnon Composition of a Magnetic Ground State via a Qubit. PHYSICAL REVIEW LETTERS 2023; 131:143602. [PMID: 37862662 DOI: 10.1103/physrevlett.131.143602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 08/29/2023] [Indexed: 10/22/2023]
Abstract
Recently gained insights into equilibrium squeezing and entanglement harbored by magnets point toward exciting opportunities for quantum science and technology, while concrete protocols for exploiting these are needed. Here, we theoretically demonstrate that a direct dispersive coupling between a qubit and a noneigenmode magnon enables detecting the magnonic number states' quantum superposition that forms the ground state of the actual eigenmode-squeezed magnon-via qubit excitation spectroscopy. Furthermore, this unique coupling is found to enable control over the equilibrium magnon squeezing and a deterministic generation of squeezed even Fock states via the qubit state and its excitation. Our work demonstrates direct dispersive coupling to noneigenmodes, realizable in spin systems, as a general pathway to exploiting the equilibrium squeezing and related quantum properties thereby motivating a search for similar realizations in other platforms.
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Affiliation(s)
- Anna-Luisa E Römling
- Condensed Matter Physics Center (IFIMAC) and Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
| | - Alejandro Vivas-Viaña
- Condensed Matter Physics Center (IFIMAC) and Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
| | - Carlos Sánchez Muñoz
- Condensed Matter Physics Center (IFIMAC) and Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
| | - Akashdeep Kamra
- Condensed Matter Physics Center (IFIMAC) and Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
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19
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Zheng LL, Shi W, Shen K, Kong D, Wang F. Controlling magnon-magnon entanglement and steering by atomic coherence. OPTICS EXPRESS 2023; 31:32953-32967. [PMID: 37859086 DOI: 10.1364/oe.493946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 07/15/2023] [Indexed: 10/21/2023]
Abstract
Here we show that it is possible to control magnon-magnon entanglement in a hybrid magnon-atom-cavity system based on atomic coherence. In a four-level V-type atomic system, two strong fields are applied to drive two dipole-allowed transitions and two microwave cavity modes are coupled with two dipole forbidden transitions as well as two magnon modes simultaneously. It is found that the stable magnon-magnon entanglement, one-way steering and two-way EPR steering can be generated and controlled by atomic coherence according to the following two points: (i) the coherent coupling between magnon and atoms is established via exchange of virtual photons; (ii) the dissipation of magnon mode is dominant over amplification since one of the atomic states mediated one-channel interaction always keeps empty. The coherent control of magnon-magnon correlations provides an effective approach to modify macroscopic quantum effects using the laser-driven atomic systems.
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20
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Zahia AA, Abd-Rabbou MY, Megahed AM, Obada ASF. Bidirectional field-steering and atomic steering induced by a magnon mode in a qubit-photon system. Sci Rep 2023; 13:14943. [PMID: 37696940 PMCID: PMC10495356 DOI: 10.1038/s41598-023-41907-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 09/01/2023] [Indexed: 09/13/2023] Open
Abstract
This paper investigates the cavity-magnon steering and qubit-qubit steering of a hybrid quantum system consisting of a single-mode magnon, a two-qubit state, and a single-mode cavity field in the presence of their damping rates. The temporal wave vector of the system is obtained for the initial maximally entangled two-qubit state and initial vacuum state of the magnon and cavity modes. Additionally, the mathematical inequalities for obtaining the cavity-magnon steering and qubit-qubit steering are introduced. The findings reveal that steering between the magnon and cavity is asymmetric, while steering between the two qubits is symmetric in our system. Increasing the atom-field coupling improves steering from magnon to field, while reducing steering between the two qubits. Moreover, increasing magnon-field coupling enhances and elevates the lower bounds of qubit-qubit steering. Further, adding the damping rates causes deterioration of the cavity-magnon steering and qubit-qubit steering. However, the steering persistence is slightly greater when damping originates from the cavity field rather than the magnon modes based on the coupling parameters.
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Affiliation(s)
- Ahmed A Zahia
- Department of Mathematics, Faculty of Science, Benha University, Benha, Egypt
| | - M Y Abd-Rabbou
- Mathematics Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt.
| | - Ahmed M Megahed
- Department of Mathematics, Faculty of Science, Benha University, Benha, Egypt
| | - A-S F Obada
- Mathematics Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
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21
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Rao J, Wang CY, Yao B, Chen ZJ, Zhao KX, Lu W. Meterscale Strong Coupling between Magnons and Photons. PHYSICAL REVIEW LETTERS 2023; 131:106702. [PMID: 37739385 DOI: 10.1103/physrevlett.131.106702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/13/2023] [Accepted: 08/09/2023] [Indexed: 09/24/2023]
Abstract
We experimentally realize a meterscale strong coupling effect between magnons and photons at room temperature, with a coherent coupling of ∼20 m and a dissipative coupling of ∼7.6 m. To this end, we integrate a saturable gain into a microwave cavity and then couple this active cavity to a magnon mode via a long coaxial cable. The gain compensates for the cavity dissipation, but preserves the cavity radiation that mediates the indirect photon-magnon coupling. It thus enables the long-range strong photon-magnon coupling. With full access to traveling waves, we demonstrate a remote control of photon-magnon coupling by modulating the phase and amplitude of traveling waves, rather than reconfiguring subsystems themselves. Our method for realizing long-range strong coupling in cavity magnonics provides a general idea for other physical systems. Our experimental achievements may promote the construction of information networks based on cavity magnonics.
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Affiliation(s)
- Jinwei Rao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - C Y Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Bimu Yao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
| | - Z J Chen
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - K X Zhao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Wei Lu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
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22
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Fang Y, Zhong W, Cheng G, Chen A. Magnon-photon cross-correlations via optical nonlinearity in cavity magnonical system. OPTICS EXPRESS 2023; 31:27381-27392. [PMID: 37710815 DOI: 10.1364/oe.495476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 07/23/2023] [Indexed: 09/16/2023]
Abstract
We propose an alternative scheme to achieve the cross-correlations between magnon and photon in a hybrid nonlinear system including two microwave cavities and one yttrium iron garnet (YIG) sphere, where two cavities nonlinearly interact and meanwhile one of cavities couples to magnon representing the collective excitation in YIG sphere via magnetic dipole interaction. Based on dispersive couplings between two cavities and between one cavity and magnon with the larger detunings, the nonlinear interaction occurs between the other cavity and magnon, which plays a crucial role in generating quantum correlations. By analyzing the second-order correlation functions via numerical simulations and analytical calculations, the remarkable nonclassical correlations are existent in such a system, where the magnon blockade and photon antibunching could be obtainable on demand. The scheme we present is focused on the magnon-photon cross-correlations in the weak coupling regime and relaxes the requirements of experimental conditions, which may have potential applications in quantum information processing in the hybrid system.
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23
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Ghasemian E. Dissipative dynamics of optomagnonic nonclassical features via anti-Stokes optical pulses: squeezing, blockade, anti-correlation, and entanglement. Sci Rep 2023; 13:12757. [PMID: 37550430 PMCID: PMC10406899 DOI: 10.1038/s41598-023-39822-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 07/31/2023] [Indexed: 08/09/2023] Open
Abstract
We propose a feasible experimental model to investigate the generation and characterization of nonclassical states in a cavity optomagnonic system consisting of a ferromagnetic YIG sphere that simultaneously supports both the magnon mode and two whispering gallery modes of optical photons. The photons undergo the magnon-induced Brillouin light scattering, which is a well-established tool for the cavity-assisted manipulations of magnons as well as magnon spintronics. At first, we derive the desired interaction Hamiltonian under the influence of the anti-Stokes scattering process and then proceed to analyze the dynamical evolution of quantum statistics of photons and magnons as well as their intermodal entanglement. The results show that both photons and magnons generally acquire some nonclassical features, e.g., the strong antibunching and anti-correlation. Interestingly, the system may experience the perfect photon and magnon blockade phenomena, simultaneously. Besides, the nonclassical features may be protected against the unwanted environmental effects for a relatively long time, especially, in the weak driving field regime and when the system is initiated with a small number of particles. However, it should be noted that some fast quantum-classical transitions may occur in-between. Although the unwanted dissipative effects plague the nonclassical features, we show that this system can be adopted to prepare optomagnonic entangled states. The generation of entangled states depends on the initial state of the system and the interaction regime. The intermodal photon-magnon entanglement may be generated and pronounced, especially, if the system is initialized with low intensity even Schrödinger cat state in the strong coupling regime. The cavity-assisted manipulation of magnons is a unique and flexible mechanism that allows an interesting test bed for investigating the interdisciplinary contexts involving quantum optics and spintronics. Moreover, such a hybrid optomagnonic system may be used to design both on-demand single-photon and single-magnon sources and may find potential applications in quantum information processing.
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Affiliation(s)
- E Ghasemian
- Department of Electrical Engineering, Faculty of Intelligent Systems Engineering and Data Science, Persian Gulf University, Bushehr, Iran.
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24
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Guo S, Russell D, Lanier J, Da H, Hammel PC, Yang F. Strong on-Chip Microwave Photon-Magnon Coupling Using Ultralow-Damping Epitaxial Y 3Fe 5O 12 Films at 2 K. NANO LETTERS 2023. [PMID: 37235476 DOI: 10.1021/acs.nanolett.3c00959] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Y3Fe5O12 is arguably the best magnetic material for magnonic quantum information science (QIS) because of its extremely low damping. We report ultralow damping at 2 K in epitaxial Y3Fe5O12 thin films grown on a diamagnetic Y3Sc2Ga3O12 substrate that contains no rare-earth elements. Using these ultralow damping YIG films, we demonstrate for the first time strong coupling between magnons in patterned YIG thin films and microwave photons in a superconducting Nb resonator. This result paves the road toward scalable hybrid quantum systems that integrate superconducting microwave resonators, YIG film magnon conduits, and superconducting qubits into on-chip QIS devices.
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Affiliation(s)
- Side Guo
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, United States of America
| | - Daniel Russell
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, United States of America
| | - Joseph Lanier
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, United States of America
| | - Haotian Da
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, United States of America
| | - P Chris Hammel
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, United States of America
| | - Fengyuan Yang
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, United States of America
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25
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Xu D, Gu XK, Li HK, Weng YC, Wang YP, Li J, Wang H, Zhu SY, You JQ. Quantum Control of a Single Magnon in a Macroscopic Spin System. PHYSICAL REVIEW LETTERS 2023; 130:193603. [PMID: 37243655 DOI: 10.1103/physrevlett.130.193603] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 04/17/2023] [Indexed: 05/29/2023]
Abstract
Nonclassical quantum states are the pivotal features of a quantum system that differs from its classical counterpart. However, the generation and coherent control of quantum states in a macroscopic spin system remain an outstanding challenge. Here we experimentally demonstrate the quantum control of a single magnon in a macroscopic spin system (i.e., 1 mm-diameter yttrium-iron-garnet sphere) coupled to a superconducting qubit via a microwave cavity. By tuning the qubit frequency in situ via the Autler-Townes effect, we manipulate this single magnon to generate its nonclassical quantum states, including the single-magnon state and the superposition of single-magnon state and vacuum (zero magnon) state. Moreover, we confirm the deterministic generation of these nonclassical states by Wigner tomography. Our experiment offers the first reported deterministic generation of the nonclassical quantum states in a macroscopic spin system and paves a way to explore its promising applications in quantum engineering.
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Affiliation(s)
- Da Xu
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation and Zhejiang Province Key Laboratory of Quantum Technology and Device, School of Physics, Zhejiang University, Hangzhou 310027, China
| | - Xu-Ke Gu
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation and Zhejiang Province Key Laboratory of Quantum Technology and Device, School of Physics, Zhejiang University, Hangzhou 310027, China
| | - He-Kang Li
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation and Zhejiang Province Key Laboratory of Quantum Technology and Device, School of Physics, Zhejiang University, Hangzhou 310027, China
| | - Yuan-Chao Weng
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation and Zhejiang Province Key Laboratory of Quantum Technology and Device, School of Physics, Zhejiang University, Hangzhou 310027, China
| | - Yi-Pu Wang
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation and Zhejiang Province Key Laboratory of Quantum Technology and Device, School of Physics, Zhejiang University, Hangzhou 310027, China
| | - Jie Li
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation and Zhejiang Province Key Laboratory of Quantum Technology and Device, School of Physics, Zhejiang University, Hangzhou 310027, China
| | - H Wang
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation and Zhejiang Province Key Laboratory of Quantum Technology and Device, School of Physics, Zhejiang University, Hangzhou 310027, China
- Hefei National Laboratory, Hefei 230088, China
| | - Shi-Yao Zhu
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation and Zhejiang Province Key Laboratory of Quantum Technology and Device, School of Physics, Zhejiang University, Hangzhou 310027, China
- Hefei National Laboratory, Hefei 230088, China
| | - J Q You
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation and Zhejiang Province Key Laboratory of Quantum Technology and Device, School of Physics, Zhejiang University, Hangzhou 310027, China
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26
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Zollitsch CW, Khan S, Nam VTT, Verzhbitskiy IA, Sagkovits D, O'Sullivan J, Kennedy OW, Strungaru M, Santos EJG, Morton JJL, Eda G, Kurebayashi H. Probing spin dynamics of ultra-thin van der Waals magnets via photon-magnon coupling. Nat Commun 2023; 14:2619. [PMID: 37147370 PMCID: PMC10163026 DOI: 10.1038/s41467-023-38322-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 04/25/2023] [Indexed: 05/07/2023] Open
Abstract
Layered van der Waals (vdW) magnets can maintain a magnetic order even down to the single-layer regime and hold promise for integrated spintronic devices. While the magnetic ground state of vdW magnets was extensively studied, key parameters of spin dynamics, like the Gilbert damping, crucial for designing ultra-fast spintronic devices, remains largely unexplored. Despite recent studies by optical excitation and detection, achieving spin wave control with microwaves is highly desirable, as modern integrated information technologies predominantly are operated with these. The intrinsically small numbers of spins, however, poses a major challenge to this. Here, we present a hybrid approach to detect spin dynamics mediated by photon-magnon coupling between high-Q superconducting resonators and ultra-thin flakes of Cr2Ge2Te6 (CGT) as thin as 11 nm. We test and benchmark our technique with 23 individual CGT flakes and extract an upper limit for the Gilbert damping parameter. These results are crucial in designing on-chip integrated circuits using vdW magnets and offer prospects for probing spin dynamics of monolayer vdW magnets.
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Affiliation(s)
- Christoph W Zollitsch
- London Centre for Nanotechnology, University College London, 17-19 Gordon Street, London, WCH1 0AH, UK.
| | - Safe Khan
- London Centre for Nanotechnology, University College London, 17-19 Gordon Street, London, WCH1 0AH, UK
| | - Vu Thanh Trung Nam
- Department of Physics, Faculty of Science, National University of Singapore, 2 Science Drive 3, Singapore, 117542, Singapore
| | - Ivan A Verzhbitskiy
- Department of Physics, Faculty of Science, National University of Singapore, 2 Science Drive 3, Singapore, 117542, Singapore
| | - Dimitrios Sagkovits
- London Centre for Nanotechnology, University College London, 17-19 Gordon Street, London, WCH1 0AH, UK
- National Physical Laboratory, Hampton Road, Teddington, TW11 0LW, UK
| | - James O'Sullivan
- London Centre for Nanotechnology, University College London, 17-19 Gordon Street, London, WCH1 0AH, UK
| | - Oscar W Kennedy
- London Centre for Nanotechnology, University College London, 17-19 Gordon Street, London, WCH1 0AH, UK
| | - Mara Strungaru
- Institute for Condensed Matter Physics and Complex Systems, School of Physics and Astronomy, The University of Edinburgh, Edinburgh, EH9 3FD, UK
| | - Elton J G Santos
- Institute for Condensed Matter Physics and Complex Systems, School of Physics and Astronomy, The University of Edinburgh, Edinburgh, EH9 3FD, UK
- Higgs Centre for Theoretical Physics, The University of Edinburgh, Edinburgh, EH9 3FD, UK
| | - John J L Morton
- London Centre for Nanotechnology, University College London, 17-19 Gordon Street, London, WCH1 0AH, UK
- Department of Electronic & Electrical Engineering, UCL, London, WC1E 7JE, UK
| | - Goki Eda
- Department of Physics, Faculty of Science, National University of Singapore, 2 Science Drive 3, Singapore, 117542, Singapore
- Centre for Advanced 2D Materials, National University of Singapore, 6 Science Drive 2, Singapore, 117546, Singapore
- Department of Chemistry, Faculty of Science, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Hidekazu Kurebayashi
- London Centre for Nanotechnology, University College London, 17-19 Gordon Street, London, WCH1 0AH, UK
- Department of Electronic & Electrical Engineering, UCL, London, WC1E 7JE, UK
- WPI Advanced Institute for Materials Research, Tohoku University, 2-1-1, Katahira, Sendai, 980- 8577, Japan
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27
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Comstock AH, Chou CT, Wang Z, Wang T, Song R, Sklenar J, Amassian A, Zhang W, Lu H, Liu L, Beard MC, Sun D. Hybrid magnonics in hybrid perovskite antiferromagnets. Nat Commun 2023; 14:1834. [PMID: 37005408 PMCID: PMC10067936 DOI: 10.1038/s41467-023-37505-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 03/20/2023] [Indexed: 04/04/2023] Open
Abstract
Hybrid magnonic systems are a newcomer for pursuing coherent information processing owing to their rich quantum engineering functionalities. One prototypical example is hybrid magnonics in antiferromagnets with an easy-plane anisotropy that resembles a quantum-mechanically mixed two-level spin system through the coupling of acoustic and optical magnons. Generally, the coupling between these orthogonal modes is forbidden due to their opposite parity. Here we show that the Dzyaloshinskii-Moriya-Interaction (DMI), a chiral antisymmetric interaction that occurs in magnetic systems with low symmetry, can lift this restriction. We report that layered hybrid perovskite antiferromagnets with an interlayer DMI can lead to a strong intrinsic magnon-magnon coupling strength up to 0.24 GHz, which is four times greater than the dissipation rates of the acoustic/optical modes. Our work shows that the DMI in these hybrid antiferromagnets holds promise for leveraging magnon-magnon coupling by harnessing symmetry breaking in a highly tunable, solution-processable layered magnetic platform.
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Affiliation(s)
- Andrew H Comstock
- Department of Physics, North Carolina State University, Raleigh, NC, 27695, USA
- Organic and Carbon Electronics Laboratory (ORACEL), North Carolina State University, Raleigh, NC, 27695, USA
| | - Chung-Tao Chou
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Zhiyu Wang
- Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Kowloon, 999077, Hong Kong (SAR), China
| | - Tonghui Wang
- Organic and Carbon Electronics Laboratory (ORACEL), North Carolina State University, Raleigh, NC, 27695, USA
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC, 27695, USA
| | - Ruyi Song
- Department of Mechanical Engineering and Material Science, Duke University, Durham, NC, 27708, USA
| | - Joseph Sklenar
- Department of Physics and Astronomy, Wayne State University, Detroit, MI, 48202, USA
| | - Aram Amassian
- Organic and Carbon Electronics Laboratory (ORACEL), North Carolina State University, Raleigh, NC, 27695, USA
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC, 27695, USA
| | - Wei Zhang
- Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Haipeng Lu
- Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Kowloon, 999077, Hong Kong (SAR), China.
- Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO, 80401, USA.
| | - Luqiao Liu
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
| | - Matthew C Beard
- Chemistry and Nanoscience Center, National Renewable Energy Laboratory, Golden, CO, 80401, USA.
| | - Dali Sun
- Department of Physics, North Carolina State University, Raleigh, NC, 27695, USA.
- Organic and Carbon Electronics Laboratory (ORACEL), North Carolina State University, Raleigh, NC, 27695, USA.
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28
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Xie H, He LW, Liao CG, Chen ZH, Lin XM. Generation of robust optical entanglement in cavity optomagnonics. OPTICS EXPRESS 2023; 31:7994-8004. [PMID: 36859918 DOI: 10.1364/oe.478963] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
We propose a scheme to realize robust optical entanglement in cavity optomagnonics, where two optical whispering gallery modes (WGMs) couple to a magnon mode in a yttrium iron garnet (YIG) sphere. The beam-splitter-like and two-mode squeezing magnon-photon interactions can be realized simultaneously when the two optical WGMs are driven by external fields. Entanglement between the two optical modes is then generated via their coupling with magnons. By exploiting the destructive quantum interference between the bright modes of the interface, the effects of initial thermal occupations of magnons can be eliminated. Moreover, the excitation of the Bogoliubov dark mode is capable of protecting the optical entanglement from thermal heating effects. Therefore, the generated optical entanglement is robust against thermal noise and the requirement of cooling the magnon mode is relaxed. Our scheme may find applications in the study of magnon-based quantum information processing.
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29
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Wang X, Huang KW, Xiong H. Nonreciprocal sideband responses in a spinning microwave magnomechanical system. OPTICS EXPRESS 2023; 31:5492-5506. [PMID: 36823828 DOI: 10.1364/oe.480554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 01/10/2023] [Indexed: 06/18/2023]
Abstract
Nonreciprocal sideband responses in a spinning microwave magnomechanical system consists of a spinning resonator coupled with a yttrium iron garnet sphere are proposed. We show that the efficiency of sideband generation can be enhanced in one driving direction but restrained in the opposite. This nonreciprocity results from Sagnac effect induced by the spinning resonator, leading to asymmetric magnonic responses in two different driving directions. Beyond the conventional linearized description, the properties of nonreciprocal two-color second-order sideband are demonstrated. By adjusting Sagnac-Fizeau shift and the power of control field, the degree of asymmetric magnonic responses can be strengthened, therefore causing stronger nonreciprocity of sideband. Especially, for the case of strong Sagnac-Fizeau shift and the control field, high level of efficiency and isolation ratio of sideband are achieved simultaneously and the operational bandwidth of strong nonreciprocity can be expanded. Our proposal provides an effective avenue for the manipulation of the nonreciprocity of sideband and has potentially practical applications in on-chip microwave isolation devices and magnon-based precision measurement.
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30
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Xue JJ, Liu WX, Liang SS, Fang AP, Wang X, Li HR. P T symmetry in a superconducting hybrid quantum system with longitudinal coupling. OPTICS EXPRESS 2023; 31:4580-4598. [PMID: 36785422 DOI: 10.1364/oe.479906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 01/03/2023] [Indexed: 06/18/2023]
Abstract
We propose a scheme consisting of coupled nanomechanical cantilever resonators and superconducting flux qubits to engineer a parity-time- (P T-) symmetric phononic system formed by active and passive modes. The effective gain (loss) of the phonon mode is achieved by the longitudinal coupling of the resonator and the fast dissipative superconducting qubit with a blue-sideband driving (red-sideband driving). A P T-symmetric to broken-P T-symmetric phase transition can be observed in both balanced gain-to-loss and unbalanced gain-to-loss cases. Applying a resonant weak probe field to the dissipative resonator, we find that (i) for balanced gain and loss, the acoustic signal absorption to amplification can be tuned by changing the coupling strength between resonators; (ii) for unbalanced gain and loss, both acoustically induced transparency and anomalous dispersion can be observed around Δ = 0, where the maximum group delay is also located at this point. Our work provides an experimentally feasible scheme to design P T-symmetric phononic systems and a powerful platform for controllable acoustic signal transmission in a hybrid quantum system.
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31
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Rao JW, Yao B, Wang CY, Zhang C, Yu T, Lu W. Unveiling a Pump-Induced Magnon Mode via Its Strong Interaction with Walker Modes. PHYSICAL REVIEW LETTERS 2023; 130:046705. [PMID: 36763434 DOI: 10.1103/physrevlett.130.046705] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 11/16/2022] [Accepted: 01/05/2023] [Indexed: 06/18/2023]
Abstract
We observe a power-dependent anticrossing of Walker spin-wave modes under microwave pumping when a ferrimagnet is placed in a microwave waveguide that does not support any discrete photon mode. We interpret this unexpected anticrossing as the generation of a pump-induced magnon mode that couples strongly to the Walker modes of the ferrimagnet. This anticrossing inherits an excellent tunability from the pump, which allows us to control the anticrossing via the pump power, frequency, and waveform. Further, we realize a remarkable functionality of this anticrossing, namely, a microwave frequency comb, in terms of the nonlinear interaction that mixes the pump and probe frequencies. Such a frequency comb originates from the magnetic dynamics and thereby does not suffer from the charge noise. The unveiled hybrid magnonics driven away from its equilibrium enriches the utilization of anticrossing for coherent information processing.
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Affiliation(s)
- J W Rao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Bimu Yao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
| | - C Y Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - C Zhang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Tao Yu
- School of Physics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Wei Lu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
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32
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Kumar Mondal A, Majumder S, Kumar Mahato B, Barman S, Otani Y, Barman A. Bias field orientation driven reconfigurable magnonics and magnon-magnon coupling in triangular shaped Ni 80Fe 20nanodot arrays. NANOTECHNOLOGY 2023; 34:135701. [PMID: 36571848 DOI: 10.1088/1361-6528/acae5e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 12/25/2022] [Indexed: 06/17/2023]
Abstract
Reconfigurable magnonics have attracted intense interest due to their myriad advantages including energy efficiency, easy tunability and miniaturization of on-chip data communication and processing devices. Here, we demonstrate efficient reconfigurability of spin-wave (SW) dynamics as well as SW avoided crossing by varying bias magnetic field orientation in triangular shaped Ni80Fe20nanodot arrays. In particular, for a range of in-plane angles of bias field, we achieve mutual coherence between two lower frequency modes leading to a drastic modification in the ferromagnetic resonance frequency. Significant modification in magnetic stray field distribution is observed at the avoided crossing regime due to anisotropic dipolar interaction between two neighbouring dots. Furthermore, using micromagnetic simulations we demonstrate that the hybrid SW modes propagate longer through an array as opposed to the non-interacting modes present in this system, indicating the possibility of coherent energy transfer of hybrid magnon modes. This result paves the way for the development of integrated on-chip magnonic devices operating in the gigahertz frequency regime.
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Affiliation(s)
- Amrit Kumar Mondal
- Department of Condensed Matter and Materials Physics, S. N. Bose National Centre for Basic Sciences, Block JD, Sector-III, Salt Lake, Kolkata 700 106, India
| | - Sudip Majumder
- Department of Condensed Matter and Materials Physics, S. N. Bose National Centre for Basic Sciences, Block JD, Sector-III, Salt Lake, Kolkata 700 106, India
| | - Bipul Kumar Mahato
- Department of Condensed Matter and Materials Physics, S. N. Bose National Centre for Basic Sciences, Block JD, Sector-III, Salt Lake, Kolkata 700 106, India
| | - Saswati Barman
- Institute of Engineering and Management, Sector V, Salt Lake, Kolkata 700091, India
| | - Yoshichika Otani
- CEMS-RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - Anjan Barman
- Department of Condensed Matter and Materials Physics, S. N. Bose National Centre for Basic Sciences, Block JD, Sector-III, Salt Lake, Kolkata 700 106, India
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33
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Enhancement of the microwave photon-magnon coupling strength for a planar fabricated resonator. Sci Rep 2023; 13:924. [PMID: 36650193 PMCID: PMC9845346 DOI: 10.1038/s41598-022-27285-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 12/29/2022] [Indexed: 01/19/2023] Open
Abstract
Planar resonators have a wide usage in modern microwave technologies and perspectives in novel quantum technologies development. As was demonstrated earlier, their utilization allows to achieve high values of microwave photon-magnon coupling strength-an important parameter in technologies of information coherent transfer from electromagnetic GHz range to the optical range. In the present work, the achievement of the high value of the microwave photon-magnon coupling strength by exploiting the increase of the spatial concentration of the magnetic component of the planar resonator electromagnetic field is reported. Starting from the conventional planar split-ring resonator design we increased the coupling strength up to 40% by modifying the resonator shape. The numerical simulation and experimental verification showed a predicted increase in the spatial concentration of the microwave magnetic component and showed the increased value of the microwave photon-magnon coupling strength as a sequence.
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34
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Diederich GM, Cenker J, Ren Y, Fonseca J, Chica DG, Bae YJ, Zhu X, Roy X, Cao T, Xiao D, Xu X. Tunable interaction between excitons and hybridized magnons in a layered semiconductor. NATURE NANOTECHNOLOGY 2023; 18:23-28. [PMID: 36577852 DOI: 10.1038/s41565-022-01259-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 10/10/2022] [Indexed: 06/17/2023]
Abstract
The interaction between distinct excitations in solids is of both fundamental interest and technological importance. One such interaction is the coupling between an exciton, a Coulomb bound electron-hole pair, and a magnon, a collective spin excitation. The recent emergence of van der Waals magnetic semiconductors1 provides a platform to explore these exciton-magnon interactions and their fundamental properties, such as strong correlation2, as well as their photospintronic and quantum transduction3 applications. Here we demonstrate the precise control of coherent exciton-magnon interactions in the layered magnetic semiconductor CrSBr. We varied the direction of an applied magnetic field relative to the crystal axes, and thus the rotational symmetry of the magnetic system4. Thereby, we tuned not only the exciton coupling to the bright magnon, but also to an optically dark mode via magnon-magnon hybridization. We further modulated the exciton-magnon coupling and the associated magnon dispersion curves through the application of uniaxial strain. At a critical strain, a dispersionless dark magnon band emerged. Our results demonstrate an unprecedented level of control of the opto-mechanical-magnonic coupling, and a step towards the predictable and controllable implementation of hybrid quantum magnonics5-11.
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Affiliation(s)
- Geoffrey M Diederich
- Intelligence Community Postdoctoral Research Fellowship Program, University of Washington, Seattle, WA, USA
- Department of Physics, University of Washington, Seattle, WA, USA
| | - John Cenker
- Department of Physics, University of Washington, Seattle, WA, USA
| | - Yafei Ren
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, USA
| | - Jordan Fonseca
- Department of Physics, University of Washington, Seattle, WA, USA
| | - Daniel G Chica
- Department of Chemistry, Columbia University, New York, NY, USA
| | - Youn Jue Bae
- Department of Chemistry, Columbia University, New York, NY, USA
| | - Xiaoyang Zhu
- Department of Chemistry, Columbia University, New York, NY, USA
| | - Xavier Roy
- Department of Chemistry, Columbia University, New York, NY, USA
| | - Ting Cao
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, USA
| | - Di Xiao
- Department of Physics, University of Washington, Seattle, WA, USA.
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, USA.
| | - Xiaodong Xu
- Department of Physics, University of Washington, Seattle, WA, USA.
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, USA.
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35
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Xu GT, Zhang M, Wang ZY, Wang Y, Liu YX, Shen Z, Guo GC, Dong CH. Ringing spectroscopy in the magnomechanical system. FUNDAMENTAL RESEARCH 2023; 3:45-49. [PMID: 38933572 PMCID: PMC11197529 DOI: 10.1016/j.fmre.2022.09.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 08/29/2022] [Accepted: 09/18/2022] [Indexed: 12/14/2022] Open
Abstract
The ringing phenomenon has been studied in optical whispering gallery mode (WGM) resonators and can be used to sense the ultrafast process in spectroscopy. Here we observe the ringing phenomenon in a magnomechanical system for the first time, which is induced by the interference between the microwave photons converted from the damped phonons and the probing microwave photons. This interference eventually appears as a transparency window even along with the ringing phenomenon in the measured microwave reflection spectrum, which is influenced by the scanning speed and the input power. Then, the ringing spectroscopy is used to measure the coupling strength between the magnon and phonon modes, and outline the displacement profile of S 1 , 2 , 2 mechanical mode in a YIG microsphere, demonstrating the theoretical analysis. In addition, the ring-up spectroscopy is developed in our magnomechanical system, laying the foundation for fast sensing based on mechanical motion.
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Affiliation(s)
- Guan-Ting Xu
- Key Laboratory of Quantum Information, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Mai Zhang
- Key Laboratory of Quantum Information, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zheng-Yu Wang
- Key Laboratory of Quantum Information, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yu Wang
- Key Laboratory of Quantum Information, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yu-Xi Liu
- Institute of Microelectronics, Tsinghua University, Beijing 100084, China
| | - Zhen Shen
- Key Laboratory of Quantum Information, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Guang-Can Guo
- Key Laboratory of Quantum Information, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- Hefei National Laboratory, University of Science and Technology of China, Hefei, Anhui 230088, China
| | - Chun-Hua Dong
- Key Laboratory of Quantum Information, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- Hefei National Laboratory, University of Science and Technology of China, Hefei, Anhui 230088, China
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36
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Giant spin ensembles in waveguide magnonics. Nat Commun 2022; 13:7580. [PMID: 36481617 PMCID: PMC9732049 DOI: 10.1038/s41467-022-35174-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 11/22/2022] [Indexed: 12/13/2022] Open
Abstract
The dipole approximation is usually employed to describe light-matter interactions under ordinary conditions. With the development of artificial atomic systems, 'giant atom' physics is possible, where the scale of atoms is comparable to or even greater than the wavelength of the light they interact with, and the dipole approximation is no longer valid. It reveals interesting physics impossible in small atoms and may offer useful applications. Here, we experimentally demonstrate the giant spin ensemble (GSE), where a ferromagnetic spin ensemble interacts twice with the meandering waveguide, and the coupling strength between them can be continuously tuned from finite (coupled) to zero (decoupled) by varying the frequency. In the nested configuration, we investigate the collective behavior of two GSEs and find extraordinary phenomena that cannot be observed in conventional systems. Our experiment offers a new platform for 'giant atom' physics.
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37
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Alotaibi MF, Khalil EM, Abd-Rabbou MY, Marin M. The Classicality and Quantumness of the Driven Qubit–Photon–Magnon System. MATHEMATICS 2022; 10:4458. [DOI: 10.3390/math10234458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
The hybrid architecture of the driven qubit–photon–magnon system has recently emerged as a promising candidate for novel quantum technologies. In this paper, we introduce the effective wave-function of a superconducting single qubit and a magnon mode contained within a cavity resonator and an external field. The non-classicality of the magnon and resonator modes are investigated by using the negative values of the Wigner function. Additionally, we discuss the non-classicality of the qubit state via the Wigner–Yanase skew information. We find that the mixture angle of the qubit–resonator plays a controllable role in non-classicality. However, the strength of the magnon–photon increases the non-classical behaviour of the system.
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38
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Kong D, Xu J, Gong C, Wang F, Hu X. Magnon-atom-optical photon entanglement via the microwave photon-mediated Raman interaction. OPTICS EXPRESS 2022; 30:34998-35013. [PMID: 36242502 DOI: 10.1364/oe.468400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 08/29/2022] [Indexed: 06/16/2023]
Abstract
We show that it is possible to generate magnon-atom-optical photon tripartite entanglement via the microwave photon-mediated Raman interaction. Magnons in a macroscopic ferromagnet and optical photons in a cavity are induced into a Raman interaction with an atomic spin ensemble when a microwave field couples the magnons to one Raman wing. The controllable magnon-atom entanglement, magnon-optical photon entanglement, and even genuine magnon-atom-optical photon tripartite entanglement can be generated simultaneously. In addition, these bipartite and tripartite entanglements are robust against the environment temperature. Our scheme paves the way for exploring a quantum interface bridging the microwave and optical domains, and may provide a promising building block for hybrid quantum networks.
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39
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Xiong H. Magnonic frequency combs based on the resonantly enhanced magnetostrictive effect. FUNDAMENTAL RESEARCH 2022. [DOI: 10.1016/j.fmre.2022.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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40
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Exciton-coupled coherent magnons in a 2D semiconductor. Nature 2022; 609:282-286. [PMID: 36071189 DOI: 10.1038/s41586-022-05024-1] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 06/24/2022] [Indexed: 11/08/2022]
Abstract
The recent discoveries of two-dimensional (2D) magnets1-6 and their stacking into van der Waals structures7-11 have expanded the horizon of 2D phenomena. One exciting application is to exploit coherent magnons12 as energy-efficient information carriers in spintronics and magnonics13,14 or as interconnects in hybrid quantum systems15-17. A particular opportunity arises when a 2D magnet is also a semiconductor, as reported recently for CrSBr (refs. 18-20) and NiPS3 (refs. 21-23) that feature both tightly bound excitons with a large oscillator strength and potentially long-lived coherent magnons owing to the bandgap and spatial confinement. Although magnons and excitons are energetically mismatched by orders of magnitude, their coupling can lead to efficient optical access to spin information. Here we report strong magnon-exciton coupling in the 2D A-type antiferromagnetic semiconductor CrSBr. Coherent magnons launched by above-gap excitation modulate the exciton energies. Time-resolved exciton sensing reveals magnons that can coherently travel beyond seven micrometres, with a coherence time of above five nanoseconds. We observe these exciton-coupled coherent magnons in both even and odd numbers of layers, with and without compensated magnetization, down to the bilayer limit. Given the versatility of van der Waals heterostructures, these coherent 2D magnons may be a basis for optically accessible spintronics, magnonics and quantum interconnects.
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41
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Cho Y, Kang S, Nahm YW, Mohamed AY, Kim Y, Cho DY, Cho S. Structural, Optical, and Magnetic Properties of Erbium-Substituted Yttrium Iron Garnets. ACS OMEGA 2022; 7:25078-25086. [PMID: 35910118 PMCID: PMC9330087 DOI: 10.1021/acsomega.2c01334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
We synthesized a series of slightly erbium-substituted yttrium iron garnets (Er:YIG), Y3-x Er x Fe5O12 at different Er concentrations (x = 0, 0.01, 0.05, 0.10, and 0.20) using a solid-state reaction and investigated their structural, magnetic, and optical properties as a function of Er concentration. The volume of the unit cell slightly increased with Er concentration and Er atoms predominately replaced Y atoms in the dodecahedrons of YIG. The optical properties exhibited certain decreases in reflectance in the 1500-1600 nm wavelength range due to the presence of Er3+. Despite the many unpaired 4f electrons in Er3+, the total magnetic moments of Er:YIG showed similar trends with temperatures and magnetic fields above 30 K. An X-ray magnetic circular dichroism study confirmed the robust Fe 3d magnetic moments. However, the magnetic moments suddenly decreased to below 30 K with Er substitution, and the residual magnetism (M R) and coercive field (H C) in the magnetic hysteresis loops decreased to below 30 K with Er substitution. This implies that Er substitution in YIG has a negligible effect on magnetic properties over a wide temperature range except below 30 K where the Er 4f spins are coupled antiparallel to the majority Fe 3d spins. Our studies demonstrated that above 30 K the magnetic properties of YIG are retained even with Er substitution, which is evidence that the Er doping scheme is applicable for YIG-based magneto-optical devices in the mid-infrared regime.
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Affiliation(s)
- Yujin Cho
- Division
of Chemical Engineering and Materials Science, Graduate Program in
System Health Science and Engineering, ELTEC College of Engineering, Ewha Womans University, Seoul 03760, Republic
of Korea
| | - Seohui Kang
- Division
of Chemical Engineering and Materials Science, Graduate Program in
System Health Science and Engineering, ELTEC College of Engineering, Ewha Womans University, Seoul 03760, Republic
of Korea
| | - Yeon Woo Nahm
- Division
of Chemical Engineering and Materials Science, Graduate Program in
System Health Science and Engineering, ELTEC College of Engineering, Ewha Womans University, Seoul 03760, Republic
of Korea
| | - Ahmed Yousef Mohamed
- IPIT
and Department of Physics, Jeonbuk National
University, Jeonju 54896, Republic of Korea
| | - Yejin Kim
- IPIT
and Department of Physics, Jeonbuk National
University, Jeonju 54896, Republic of Korea
| | - Deok-Yong Cho
- IPIT
and Department of Physics, Jeonbuk National
University, Jeonju 54896, Republic of Korea
| | - Suyeon Cho
- Division
of Chemical Engineering and Materials Science, Graduate Program in
System Health Science and Engineering, ELTEC College of Engineering, Ewha Womans University, Seoul 03760, Republic
of Korea
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42
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Kounalakis M, Bauer GEW, Blanter YM. Analog Quantum Control of Magnonic Cat States on a Chip by a Superconducting Qubit. PHYSICAL REVIEW LETTERS 2022; 129:037205. [PMID: 35905351 DOI: 10.1103/physrevlett.129.037205] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 06/22/2022] [Indexed: 06/15/2023]
Abstract
We propose to directly and quantum-coherently couple a superconducting transmon qubit to magnons-the quanta of the collective spin excitations, in a nearby magnetic particle. The magnet's stray field couples to the qubit via a superconducting quantum interference device. We predict a resonant magnon-qubit exchange and a nonlinear radiation-pressure interaction that are both stronger than dissipation rates and tunable by an external flux bias. We additionally demonstrate a quantum control scheme that generates magnon-qubit entanglement and magnonic Schrödinger cat states with high fidelity.
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Affiliation(s)
- Marios Kounalakis
- Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ Delft, Netherlands
| | - Gerrit E W Bauer
- Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ Delft, Netherlands
- WPI-AIMR, Tohoku University, 2-1-1, Katahira, Sendai 980-8577, Japan
- Kavli Institute for Theoretical Sciences, University of the Chinese Academy of Sciences, 100190 Beijing, China
| | - Yaroslav M Blanter
- Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ Delft, Netherlands
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43
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Huang KW, Wu Y, Si LG. Parametric-amplification-induced nonreciprocal magnon laser. OPTICS LETTERS 2022; 47:3311-3314. [PMID: 35776613 DOI: 10.1364/ol.459917] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 06/14/2022] [Indexed: 06/15/2023]
Abstract
We theoretically propose a scheme to achieve all-optical nonreciprocal magnon lasing action in a composite cavity optomagnonical system considering of a yttrium iron garnet sphere coupled to a parametric resonator. The magnon lasing behavior can be engendered via the magnon-induced Brillouin scattering process in the cavity optomagnonical system. By unidirectionally driving the χ(2)-nonlinear resonator with a classical coherent field, the squeezed effect occurs only in the selected direction due to the phase-matching condition, resulting in asymmetric detuning between the two resonators, which is the physical mechanism to generate a nonreciprocal magnon laser. We further examine the gain factor and power threshold of the magnon laser. Moreover, the isolation rate can reach 21 dB by adjusting the amplitude of the parametric amplification. Our work shows a path to obtain an all-optical nonreciprocal magnon laser, which provides a means for the preparation of a coherent magnon laser and laser protection.
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44
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Henriques JCG, Antão TVC, Peres NMR. Laser induced enhanced coupling between photons and squeezed magnons in antiferromagnets. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:245802. [PMID: 35420060 DOI: 10.1088/1361-648x/ac5f61] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 03/21/2022] [Indexed: 06/14/2023]
Abstract
In this paper we consider a honeycomb antiferromagnet subject to an external laser field. Obtaining a time-independent effective Hamiltonian, we find that the external laser renormalizes the exchange interaction between the in-plane components of the spin-operators, and induces a synthetic Dzyaloshinskii-Moria interaction (DMI) between second neighbors. The former allows the control of the magnon dispersion's bandwidth and the latter breaks time-reversal symmetry inducing non-reciprocity in momentum space. The eigen-excitations of the system correspond to squeezed magnons whose squeezing parameters depend on the properties of the laser. When studying how these spin excitations couple with cavity photons, we obtain a coupling strength which can be enhanced by an order of magnitude via careful tuning of the laser's intensity, when compared to the case where the laser is absent. The transmission plots through the cavity are presented, allowing the mapping of the magnons' dispersion relation.
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Affiliation(s)
- J C G Henriques
- Department and Centre of Physics, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
| | - T V C Antão
- Department and Centre of Physics, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
| | - N M R Peres
- Department and Centre of Physics, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre Jose Veiga, 4715-330 Braga, Portugal
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45
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Varbev S, Boradjiev I, Kamburova R, Chamati H. Control of a qubit state by a soliton propagating through a Heisenberg spin chain. Phys Rev E 2022; 105:034207. [PMID: 35428093 DOI: 10.1103/physreve.105.034207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
We demonstrate that nonlinear magnetic solitary excitations (solitons) traveling through a Heisenberg spin chain may be used as a robust tool capable of coherent control of the qubit's state. The physical problem is described by a Hamiltonian involving the interaction between the soliton and the qubit. We show that under certain conditions the generic Hamiltonian may be mapped on that of a qubit two-level system with matrix elements depending on the soliton parameters. We considered the action of a bright and a dark soliton depending on the driving nonlinear wave function. We considered a local interaction restricted the closest to the qubit spin in the chain. We computed the expressions of the physical quantities of interest for all cases and analyzed their behavior in some special limits.
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Affiliation(s)
- S Varbev
- Institute of Solid State Physics, Bulgarian Academy of Sciences, Tzarigradsko chaussée 72, 1784 Sofia, Bulgaria
| | - I Boradjiev
- Institute of Solid State Physics, Bulgarian Academy of Sciences, Tzarigradsko chaussée 72, 1784 Sofia, Bulgaria
| | - R Kamburova
- Institute of Solid State Physics, Bulgarian Academy of Sciences, Tzarigradsko chaussée 72, 1784 Sofia, Bulgaria
| | - H Chamati
- Institute of Solid State Physics, Bulgarian Academy of Sciences, Tzarigradsko chaussée 72, 1784 Sofia, Bulgaria
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46
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Li Y, Yefremenko VG, Lisovenko M, Trevillian C, Polakovic T, Cecil TW, Barry PS, Pearson J, Divan R, Tyberkevych V, Chang CL, Welp U, Kwok WK, Novosad V. Coherent Coupling of Two Remote Magnonic Resonators Mediated by Superconducting Circuits. PHYSICAL REVIEW LETTERS 2022; 128:047701. [PMID: 35148146 DOI: 10.1103/physrevlett.128.047701] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Accepted: 12/09/2021] [Indexed: 06/14/2023]
Abstract
We demonstrate microwave-mediated distant magnon-magnon coupling on a superconducting circuit platform, incorporating chip-mounted single-crystal Y_{3}Fe_{5}O_{12} (YIG) spheres. Coherent level repulsion and dissipative level attraction between the magnon modes of the two YIG spheres are demonstrated. The former is mediated by cavity photons of a superconducting resonator, and the latter is mediated by propagating photons of a coplanar waveguide. Our results open new avenues toward exploring integrated hybrid magnonic networks for coherent information processing on a quantum-compatible superconducting platform.
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Affiliation(s)
- Yi Li
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | | | - Marharyta Lisovenko
- High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Cody Trevillian
- Department of Physics, Oakland University, Rochester, Michigan 48309, USA
| | - Tomas Polakovic
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Thomas W Cecil
- High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Peter S Barry
- High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - John Pearson
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Ralu Divan
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Vasyl Tyberkevych
- Department of Physics, Oakland University, Rochester, Michigan 48309, USA
| | - Clarence L Chang
- High Energy Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Ulrich Welp
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Wai-Kwong Kwok
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Valentine Novosad
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
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47
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Mai TT, Garrity KF, McCreary A, Argo J, Simpson JR, Doan-Nguyen V, Aguilar RV, Walker ARH. Magnon-phonon hybridization in 2D antiferromagnet MnPSe 3. SCIENCE ADVANCES 2021; 7:eabj3106. [PMID: 34714675 PMCID: PMC8555890 DOI: 10.1126/sciadv.abj3106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 09/08/2021] [Indexed: 05/08/2023]
Abstract
Magnetic excitations in van der Waals (vdW) materials, especially in the two-dimensional (2D) limit, are an exciting research topic from both the fundamental and applied perspectives. Using temperature-dependent, magneto-Raman spectroscopy, we identify the hybridization of two-magnon excitations with two phonons in manganese phosphorus triselenide (MnPSe3), a magnetic vdW material that hosts in-plane antiferromagnetism. Results from first-principles calculations of the phonon and magnon spectra further support our identification. The Raman spectra’s rich temperature dependence through the magnetic transition displays an avoided crossing behavior in the phonons’ frequency and a concurrent decrease in their lifetimes. We construct a model based on the interaction between a discrete level and a continuum that reproduces these observations. Our results imply a strong hybridization between each phonon and a two-magnon continuum. This work demonstrates that the magnon-phonon interactions can be observed directly in Raman scattering and provides deep insight into these interactions in 2D magnetic materials.
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Affiliation(s)
- Thuc T. Mai
- Nanoscale Device Characterization Division, Physical Measurement Laboratory, NIST, Gaithersburg, MD 20899, USA
| | - Kevin F. Garrity
- Materials Measurement Science Division, Materials Measurement Laboratory, NIST, Gaithersburg, MD 20899, USA
| | - Amber McCreary
- Nanoscale Device Characterization Division, Physical Measurement Laboratory, NIST, Gaithersburg, MD 20899, USA
| | - Joshua Argo
- Department of Materials Science and Engineering, Ohio State University, Columbus, OH 43210, USA
| | - Jeffrey R. Simpson
- Nanoscale Device Characterization Division, Physical Measurement Laboratory, NIST, Gaithersburg, MD 20899, USA
- Physics, Astronomy, and Geosciences, Towson University, Towson, MD 21252, USA
| | - Vicky Doan-Nguyen
- Department of Materials Science and Engineering, Ohio State University, Columbus, OH 43210, USA
- Center for Emergent Materials, Department of Physics, The Ohio State University, Columbus, OH 43210, USA
| | - Rolando Valdés Aguilar
- Center for Emergent Materials, Department of Physics, The Ohio State University, Columbus, OH 43210, USA
| | - Angela R. Hight Walker
- Nanoscale Device Characterization Division, Physical Measurement Laboratory, NIST, Gaithersburg, MD 20899, USA
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48
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Shen RC, Wang YP, Li J, Zhu SY, Agarwal GS, You JQ. Long-Time Memory and Ternary Logic Gate Using a Multistable Cavity Magnonic System. PHYSICAL REVIEW LETTERS 2021; 127:183202. [PMID: 34767406 DOI: 10.1103/physrevlett.127.183202] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 10/11/2021] [Indexed: 06/13/2023]
Abstract
Multistability is an extraordinary nonlinear property of dynamical systems and can be explored to implement memory and switches. Here we experimentally realize the tristability in a three-mode cavity magnonic system with Kerr nonlinearity. The three stable states in the tristable region correspond to the stable solutions of the frequency shift of the cavity magnon polariton under specific driving conditions. We find that the system staying in which stable state depends on the history experienced by the system, and this state can be harnessed to store the history information. In our experiment, the memory time can reach as long as 5.11 s. Moreover, we demonstrate the ternary logic gate with good on-off characteristics using this multistable hybrid system. Our new findings pave a way towards cavity magnonics-based information storage and processing.
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Affiliation(s)
- Rui-Chang Shen
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation, and Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Hangzhou 310027, China
| | - Yi-Pu Wang
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation, and Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Hangzhou 310027, China
| | - Jie Li
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation, and Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Hangzhou 310027, China
| | - Shi-Yao Zhu
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation, and Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Hangzhou 310027, China
| | - G S Agarwal
- Institute for Quantum Science and Engineering and Department of Biological and Agricultural Engineering, and Department of Physics and Astronomy, Texas AM University, College Station, Texas 77843, USA
| | - J Q You
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation, and Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Hangzhou 310027, China
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49
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Sun FX, Zheng SS, Xiao Y, Gong Q, He Q, Xia K. Remote Generation of Magnon Schrödinger Cat State via Magnon-Photon Entanglement. PHYSICAL REVIEW LETTERS 2021; 127:087203. [PMID: 34477416 DOI: 10.1103/physrevlett.127.087203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/30/2021] [Accepted: 07/23/2021] [Indexed: 06/13/2023]
Abstract
The magnon cat state represents a macroscopic quantum superposition of collective magnetic excitations of large number spins that not only provides fundamental tests of macroscopic quantum effects but also finds applications in quantum metrology and quantum computation. In particular, remote generation and manipulation of Schrödinger cat states are particularly interesting for the development of long-distance and large-scale quantum information processing. Here, we propose an approach to remotely prepare magnon even or odd cat states by performing local non-Gaussian operations on the optical mode that is entangled with the magnon mode through pulsed optomagnonic interaction. By evaluating key properties of the resulting cat states, we show that for experimentally feasible parameters, they are generated with both high fidelity and nonclassicality, as well as with a size large enough to be useful for quantum technologies. Furthermore, the effects of experimental imperfections such as the error of projective measurements and dark count when performing single-photon operations have been discussed, where the lifetime of the created magnon cat states is expected to be t∼1 μs.
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Affiliation(s)
- Feng-Xiao Sun
- State Key Laboratory for Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-Optoelectronics, and Collaborative Innovation Center of Quantum Matter, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Sha-Sha Zheng
- State Key Laboratory for Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-Optoelectronics, and Collaborative Innovation Center of Quantum Matter, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Yang Xiao
- Department of Applied Physics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Qihuang Gong
- State Key Laboratory for Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-Optoelectronics, and Collaborative Innovation Center of Quantum Matter, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
- Yangtze Delta Institute of Optoelectronics, Peking University, Nantong 226010, Jiangsu, China
| | - Qiongyi He
- State Key Laboratory for Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-Optoelectronics, and Collaborative Innovation Center of Quantum Matter, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
- Yangtze Delta Institute of Optoelectronics, Peking University, Nantong 226010, Jiangsu, China
| | - Ke Xia
- Beijing Computational Science Research Center, Beijing 100193, China
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Kong C, Bao XM, Liu JB, Xiong H. Magnon-mediated nonreciprocal microwave transmission based on quantum interference. OPTICS EXPRESS 2021; 29:25477-25487. [PMID: 34614878 DOI: 10.1364/oe.430619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 07/19/2021] [Indexed: 06/13/2023]
Abstract
Nonreciprocity has always been a subject of interest and plays a key role in a variety of applications like signal processing and noise isolation. In this work, we propose a simple and feasible scheme to implement nonreciprocal microwave transmission in a high-quality-factor superconducting cavity with ferrimagnetic materials. We derive necessary requirements to create nonreciprocity in our system where a magnon mode and two microwave modes are coupled to each other, highlighting the adjustability of a static magnetic field controlled nonreciprocal transmission based on quantum interference between different transmission paths, which breaks time-reversal symmetry of the three-mode cavity magnonics system. The high light isolation adjusted within a range of different magnetic fields can be obtained by modulating the photon-magnon coupling strength. Due to the simplicity of the device and the system tunability, our results may facilitate potential applications for light magnetic sensing and coherent information processing.
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