非线性Jaynes-Cummings模型纠缠演化和最大纠缠态产生

J4 ›› 2014, Vol. 31 ›› Issue (5): 610-614.

非线性Jaynes-Cummings模型纠缠演化和最大纠缠态产生

赵加强曹连振逯怀新

山东省多光子纠缠与操纵重点实验室，潍坊学院物理与光电工程学院，山东潍坊 261061

收稿日期:2014-01-20 修回日期:2014-02-28 出版日期:2014-09-28 发布日期:2014-09-17
通讯作者: 赵加强(1976.12-)博士，副教授，从事量子信息与量子光学的研究. E-mail:zhaojiaqiang@eyou.com
基金资助:
国家自然科学基金（批准号：11174224）、山东省自然科学基金（批准号：ZR2011AL012，ZR2013FM001）、山东省科技发展计划(批准号：2011YD01049)、山东省大型科学仪器设备升级改造技术研究项目（批准号：2013SJGZ10）和山东省高等学校科技计划(J13LJ54)

The evolution of entanglement and the generation of maximally entangled states in the nonlinear Jaynes-Cummings model

ZHAO Jia-qiang, Cao Lian-zhen, Lu Huai-xin

Shandong Provincial Key Laboratory of Multi-photon Entanglement and Manipulation, Department of Physics and Optoelectronic Engineering, Weifang University, Weifang 261061, China

Received:2014-01-20 Revised:2014-02-28 Published:2014-09-28 Online:2014-09-17

摘要/Abstract

摘要： 利用数值计算的方法，研究了Kerr介质腔中的J-C模型二能级原子和单模光场作用过程中信息熵和纠缠演化，得到了Kerr效应对纠缠态纠缠性质的影响。结果表明，Kerr介质对耦合体系的纠缠度有强烈的影响，在合适的Kerr效应下，量子态将长时间保持最大纠缠。

关键词: 量子光学；纠缠度；Kerr介质；信息熵

Abstract: Using the numerical method, the information entropy and evolution of entanglement of atom and a single mode light field of J-C model in the Kerr medium cavity have been studied. The effect of Kerr on the properties of entangled states has been obtained. The results show that Kerr medium has a strong influence on entanglement property of coupled system. With the appropriate Kerr effect, the maximally entangled quantum state will long remain.

Key words: quantum optics; degree of entanglement; Kerr medium; information entropy

赵加强曹连振逯怀新. 非线性Jaynes-Cummings模型纠缠演化和最大纠缠态产生[J]. J4, 2014, 31(5): 610-614.

ZHAO Jia-qiang, Cao Lian-zhen, Lu Huai-xin. The evolution of entanglement and the generation of maximally entangled states in the nonlinear Jaynes-Cummings model[J]. J4, 2014, 31(5): 610-614.

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