| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Einstein－Podolsky－Rosen entanglement in bad cavity case |
| Yuan Sui-Hong(袁绥洪) and Hu Xiang-Ming(胡响明)†ger |
| Department of Physics, Huazhong Normal University, Wuhan 430079, China |
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Abstract This paper explores continuous variable entanglement in four-wave mixing when the atomic relaxation time is comparable to and longer than the cavity relaxation time. In this case the atomic memory is included in the field correlations and the entanglement in the output fields can be significantly enhanced. Einstein—Podolsky—Rosen (EPR) entanglement is achievable even in the bad cavity limit. This shows the EPR entanglement generation without need of good cavity.
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Revised: 13 January 2010
Accepted manuscript online:
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PACS:
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03.65.Ud
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(Entanglement and quantum nonlocality)
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42.50.Dv
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(Quantum state engineering and measurements)
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37.10.Vz
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(Mechanical effects of light on atoms, molecules, and ions)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 60778005). |
Cite this article:
Yuan Sui-Hong(袁绥洪) and Hu Xiang-Ming(胡响明) Einstein－Podolsky－Rosen entanglement in bad cavity case 2010 Chin. Phys. B 19 074210
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