| 经典驱动J-C模型中的纠缠演化和转移特性研究 |
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| 引用本文： | 封玲娟,张英杰,夏云杰.经典驱动J-C模型中的纠缠演化和转移特性研究[J].量子电子学报,2013,30(6):716-721. |
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| 作者姓名： | 封玲娟 张英杰 夏云杰 |
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| 作者单位： | 1 曲阜师范大学物理工程学院，山东 曲阜，273165;
2 山东省激光偏光与信息技术重点实验室，曲阜师范大学物理系，山东 曲阜，273165 |
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| 摘 要： | 研究了受经典场驱动的两个二能级原子分别与两个单模腔场相互作用模型中两原子的纠缠动力学行为。该工作主要是对经典场驱动存在的J-C模型进行了研究，采用数值计算的方法，详细分析了纠缠初始状态以及经典场的驱动强度对原子纠缠和转移特性的影响。结果表明，适当调节经典场驱动强度，可以使原子的纠缠突然死亡现象得到抑制，同时实现原子与腔场间的最大转移。
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| 关 键 词： | 量子光学 量子纠缠 部分转置矩阵负本征值 经典场驱动 |
Entanglement evolution and transfer in classical driven Jaynes-Cummings model |
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| Feng Lingjuan,Zhang Yingjie,Xia Yunjie.Entanglement evolution and transfer in classical driven Jaynes-Cummings model[J].Chinese Journal of Quantum Electronics,2013,30(6):716-721. |
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| Authors: | Feng Lingjuan Zhang Yingjie Xia Yunjie |
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| Affiliation: | 1 Department of Physics，Qufu Normal University，Qufu，Shandong 273165，China；
2 Shandong Provinical Key Laboratory of Laser Polarization and Information Technology ，Department of Physics Qufu Normal University，Qufu，Shandong 273165，China |
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| Abstract: | The entanglement dynamical behaviors of two two-level atoms，which respectively interact with two single-mode cavity field are inestigated. The Jaynes-Cummings model in which the classical driven strength exists is studied，by means of numerical calculation，we analyze the effect of the initial entanglement and the classical field driven strength on the entanglement evolution and transfer of two atoms. The result shows that when we choose the appropriate condition，the phenomenon of entanglement sudden death can be inhibited，and realizes the biggest entanglement transfer between the atoms and cavity fields. |
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| Keywords: | quantum optics quantum entanglement negative eigenvalues of the partial transposed matrix classical field driven |
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