| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Two-Mode Steady-State Entanglement in a Four-Level Atomic System |
| PING Yun-Xia1**, ZHANG Chao-Min1, CHEN Guang-Long1, ZHU Peng-Fei1, CHENG Ze2 |
1College of Fundamental Studies, Shanghai University of Engineering Science, Shanghai 201600
2School of Physics, Huazhong University of Science and Technology, Wuhan 430074
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| Cite this article: |
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PING Yun-Xia, ZHANG Chao-Min, CHEN Guang-Long et al 2013 Chin. Phys. Lett. 30 044203 |
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Abstract We investigate the continuous variable entanglement in a four-level atom according to the criterion proposed by Duan et al. [Phys. Rev. Lett. 84 (2000) 2722]. The atomic coherence is introduced using two external classical driving fields. We study the steady-state entanglement of the system in the presence of losses, concluding that the creation of entangled states can be achievable under certain conditions.
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Received: 28 November 2012
Published: 28 April 2013
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| PACS: |
42.50.Dv
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(Quantum state engineering and measurements)
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03.67.Mn
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(Entanglement measures, witnesses, and other characterizations)
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03.65.Ud
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(Entanglement and quantum nonlocality)
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