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Loriani S, Friedrich A, Ufrecht C, Di Pumpo F, Kleinert S, Abend S, Gaaloul N, Meiners C, Schubert C, Tell D, Wodey É, Zych M, Ertmer W, Roura A, Schlippert D, Schleich WP, Rasel EM, Giese E. Interference of clocks: A quantum twin paradox. Sci Adv 2019; 5:eaax8966. [PMID: 31620559 PMCID: PMC6777965 DOI: 10.1126/sciadv.aax8966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 09/09/2019] [Indexed: 06/10/2023]
Abstract
The phase of matter waves depends on proper time and is therefore susceptible to special-relativistic (kinematic) and gravitational (redshift) time dilation. Hence, it is conceivable that atom interferometers measure general-relativistic time-dilation effects. In contrast to this intuition, we show that (i) closed light-pulse interferometers without clock transitions during the pulse sequence are not sensitive to gravitational time dilation in a linear potential. (ii) They can constitute a quantum version of the special-relativistic twin paradox. (iii) Our proposed experimental geometry for a quantum-clock interferometer isolates this effect.
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Affiliation(s)
- Sina Loriani
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Alexander Friedrich
- Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQ), Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany
| | - Christian Ufrecht
- Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQ), Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany
| | - Fabio Di Pumpo
- Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQ), Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany
| | - Stephan Kleinert
- Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQ), Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany
| | - Sven Abend
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Naceur Gaaloul
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Christian Meiners
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Christian Schubert
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Dorothee Tell
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Étienne Wodey
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Magdalena Zych
- Centre for Engineered Quantum Systems, School of Mathematics and Physics, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Wolfgang Ertmer
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Albert Roura
- Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQ), Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany
| | - Dennis Schlippert
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Wolfgang P. Schleich
- Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQ), Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany
- Hagler Institute for Advanced Study and Department of Physics and Astronomy, Institute for Quantum Science and Engineering (IQSE), Texas A&M AgriLife Research, Texas A&M University, College Station, TX 77843-4242, USA
- Institute of Quantum Technologies, German Aerospace Center (DLR), D-89069 Ulm, Germany
| | - Ernst M. Rasel
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Enno Giese
- Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQ), Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany
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Jarlov C, Wodey É, Lyasota A, Calic M, Gallo P, Dwir B, Rudra A, Kapon E. Effect of Pure Dephasing and Phonon Scattering on the Coupling of Semiconductor Quantum Dots to Optical Cavities. Phys Rev Lett 2016; 117:076801. [PMID: 27563983 DOI: 10.1103/physrevlett.117.076801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Indexed: 06/06/2023]
Abstract
Using site-controlled semiconductor quantum dots (QDs) free of multiexcitonic continuum states, integrated with photonic crystal membrane cavities, we clarify the effects of pure dephasing and phonon scattering on exciton-cavity coupling in the weak-coupling regime. In particular, the observed QD-cavity copolarization and cavity mode feeding versus QD-cavity detuning are explained quantitatively by a model of a two-level system embedded in a solid-state environment.
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Affiliation(s)
- C Jarlov
- Laboratory of Physics of Nanostructures, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - É Wodey
- Laboratory of Physics of Nanostructures, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - A Lyasota
- Laboratory of Physics of Nanostructures, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - M Calic
- Laboratory of Physics of Nanostructures, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - P Gallo
- Laboratory of Physics of Nanostructures, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - B Dwir
- Laboratory of Physics of Nanostructures, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - A Rudra
- Laboratory of Physics of Nanostructures, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - E Kapon
- Laboratory of Physics of Nanostructures, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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