| 强经典驱动腔QED系统的量子纠缠演化特性 |
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| 引用本文： | 李星,崔文凯,张英杰.强经典驱动腔QED系统的量子纠缠演化特性[J].量子电子学报,2013,30(2):186-191. |
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| 作者姓名： | 李星 崔文凯 张英杰 |
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| 作者单位： | 1 曲阜师范大学图书馆，山东 曲阜，273165；
2 曲阜师范大学物理工程学院，山东 曲阜，273165；
3 曲阜师范大学物理系, 山东省激光偏光与信息技术重点实验室, 山东 曲阜, 273165 |
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| 摘 要： | 研究了强经典场驱动模型下原子间纠缠与光场间纠缠的演化特性，其中原子与光腔场发生非共振相互作用。在给定其中某一原子与其耦合光腔场的条件，通过调节另一原子与其相互作用光场的失谐量，来分析原子间纠缠出现猝死行为的区域，以及两光场纠缠相干态的产生条件。
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| 关 键 词： | 量子光学 量子纠缠 转置矩阵负本征值 纠缠突然死亡 |
| 收稿时间： | 2012-02-23 |
| 修稿时间： | 2012-03-22 |
Evolutional quantum entanglement character of a classical strongly driven cavity QED system |
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| Affiliation: | 1 Library of Qufu Normal University, Qufu 273165, China；
2 Department of Physics, Qufu Normal University, Qufu 273165, China；
3 Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Department of Physics, Qufu Normal University, Qufu 273165, China |
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| Abstract: | The evolutional characters of the atomic entanglement and the optical-cavity entanglement were mainly investigated in the classical strongly driven cavity QED model, and two atoms are off-resonantly coupled with their cavity fields, respectively. By fixing the parameters of one atom and its coupled optical cavity field, and modifying the detuning between the other atom and its optical cavity, the occurrence area of the atomic entanglement sudden death was discussed, and the conditions on the emergence of the entangled coherent states between two optical cavity fields was acquired. |
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| Keywords: | quantum optics quantum entanglement negative eigenvalues of the partial transposition entanglement sudden death |
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