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Zhang Z, Zheng H, Yao X, Tian Y, Che J, Wang X, Zhu D, Zhang Y, Xiao M. Phase Modulation in Rydberg Dressed Multi-Wave Mixing processes. Sci Rep 2015; 5:10462. [PMID: 26053438 PMCID: PMC4459079 DOI: 10.1038/srep10462] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 04/15/2015] [Indexed: 11/23/2022] Open
Abstract
We study the enhancement and suppression of different multi-waving mixing (MWM) processes in a Rydberg-EIT rubidium vapor system both theoretically and experimentally. The nonlinear dispersion property of hot rubidium atoms is modulated by the Rydberg-Rydberg interaction, which can result in a nonlinear phase shift of the relative phase between dark and bright states. Such Rydberg-induced nonlinear phase shift can be quantitatively estimated by the lineshape asymmetry in the enhancedand suppressed MWM processes, which can also demonstrate the cooperative atom-light interaction caused by Rydberg blockaded regime. Current study on phase shift is applicable to phase-sensitive detection and the study of strong Rydberg-Rydberg interaction.
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Affiliation(s)
- Zhaoyang Zhang
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education &Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China
| | - Huaibin Zheng
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education &Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xin Yao
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education &Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yaling Tian
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education &Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China
| | - Junling Che
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education &Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xiuxiu Wang
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education &Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China
| | - Dayu Zhu
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education &Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yanpeng Zhang
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education &Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China
| | - Min Xiao
- Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA &National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
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Zhang Z, Che J, Zhang D, Liu Z, Wang X, Zhang Y. Eight-wave mixing process in a Rydberg-dressing atomic ensemble. OPTICS EXPRESS 2015; 23:13814-13822. [PMID: 26072753 DOI: 10.1364/oe.23.013814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We investigate the eight-wave mixing (EWM) process involving highly excited Rydberg states with the assistance of coexisting electromagnetically induced transparency (EIT) windows in a thermal 85Rb vapor both theoretically and experimentally. By use of a disturbance-free optical detection method, the Rydberg EWM characterized by multiple sets of spin coherence is presented via the interplay and competition between the dressing-state effects and excitation blockade caused by strong Rydberg-Rydberg interaction. Such interplay and competition can be demonstrated by the intensity evolutions of multi-wave mixing (MWM) signals via controlling the atomic density, the frequency detuning and Rabi frequencies of corresponding laser fields. The observed Rydberg EWM tailored by EIT windows can possess of much narrower linewidth <30MHz and provide a new way for the study of Rydberg effect in the atomic ensemble above room temperature.
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Baluktsian T, Huber B, Löw R, Pfau T. Evidence for strong van der Waals type Rydberg-Rydberg interaction in a thermal vapor. PHYSICAL REVIEW LETTERS 2013; 110:123001. [PMID: 25166800 DOI: 10.1103/physrevlett.110.123001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Indexed: 06/03/2023]
Abstract
We present evidence for Rydberg-Rydberg interaction in a gas of rubidium atoms above room temperature. Rabi oscillations on the nanosecond time scale to different Rydberg states are investigated in a vapor cell experiment. Analyzing the atomic time evolution and comparing to a dephasing model, we find a scaling with the Rydberg quantum number n that is consistent with van der Waals interaction. Our results show that the interaction strength can be larger than the kinetic energy scale (Doppler width), which is the requirement for realization of thermal quantum devices in the GHz regime.
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Affiliation(s)
- T Baluktsian
- 5. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany
| | - B Huber
- 5. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany
| | - R Löw
- 5. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany
| | - T Pfau
- 5. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany
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Huber B, Baluktsian T, Schlagmüller M, Kölle A, Kübler H, Löw R, Pfau T. GHz Rabi flopping to Rydberg states in hot atomic vapor cells. PHYSICAL REVIEW LETTERS 2011; 107:243001. [PMID: 22242993 DOI: 10.1103/physrevlett.107.243001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Indexed: 05/31/2023]
Abstract
We report on the observation of Rabi oscillations to a Rydberg state on a time scale below 1 ns in thermal rubidium vapor. We use a bandwidth-limited pulsed excitation and observe up to 6 full Rabi cycles within a pulse duration of ∼4 ns. We find good agreement between the experiment and numerical simulations based on a surprisingly simple model. This result shows that fully coherent dynamics with Rydberg states can be achieved even in thermal atomic vapor, thus suggesting small vapor cells as a platform for room-temperature quantum devices. Furthermore, the result implies that previous coherent dynamics in single-atom Rydberg gates can be accelerated by 3 orders of magnitude.
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Affiliation(s)
- B Huber
- 5. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany
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Khrebtukov DB, Fabrikant II. Off-shell effect in Rydberg-atom-alkali-metal-atom scattering. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1995; 51:4675-4686. [PMID: 9912157 DOI: 10.1103/physreva.51.4675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Borodin VM, Kazansky AK, Khrebtukov DB, Fabrikant II. Adiabatic complex-plane calculations of Rydberg-state broadening by Rb and K perturbers. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1993; 48:479-484. [PMID: 9909621 DOI: 10.1103/physreva.48.479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Fabrikant II. Impulse-approximation analysis of collisions between Rydberg and ground-state rubidium atoms at thermal energies. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1992; 45:6404-6410. [PMID: 9907761 DOI: 10.1103/physreva.45.6404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Borodin VM, Fabrikant II, Kazansky AK. Collisional broadening of Rydberg states by alkali-metal perturbers. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1991; 44:5725-5729. [PMID: 9906634 DOI: 10.1103/physreva.44.5725] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Ueda K, Sotome H, Sato Y. Observation of pair absorption and self‐broadening in Ba vapor. J Chem Phys 1991. [DOI: 10.1063/1.459911] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Heber K, West PJ, Matthias E. Pressure shift and broadening of Sr I Rydberg states in noble gases. PHYSICAL REVIEW. A, GENERAL PHYSICS 1988; 37:1438-1448. [PMID: 9899815 DOI: 10.1103/physreva.37.1438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Thompson DC, Kammermayer E, Stoicheff BP, Weinberger E. Pressure shifts and broadenings of Rb Rydberg states by Ne, Kr, and H2. PHYSICAL REVIEW. A, GENERAL PHYSICS 1987; 36:2134-2141. [PMID: 9899104 DOI: 10.1103/physreva.36.2134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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