| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Entanglement Enhancement Via Collective CPT in Bichromatically Driven Three-Level Atoms |
| TAN Hua-Tang1, DENG Wen-Wu2 |
| 1Department of Physics, Huazhong Normal University, Wuhan 4300792Department of Physics, Xianning University, Xianning 437100 |
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| Cite this article: |
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TAN Hua-Tang, DENG Wen-Wu 2009 Chin. Phys. Lett. 26 094205 |
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Abstract We investigate the generation of two-mode entangled light from cooperative three-level cascade emitters driven by two lasers inside an optical cavity. It is found that through collective coherent population trapping (CPT) to prepare the atomic states close to the coherent superposition state |1>-|3>√2 of the top and ground levels, the entanglement and mean photon number of the entangled light can be significantly enhanced in comparison to the case of independent atoms.
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| Keywords:
42.50.Dv
03.67.Mn
32.80.Qk
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Received: 12 May 2009
Published: 28 August 2009
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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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32.80.Qk
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(Coherent control of atomic interactions with photons)
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