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    Entanglement properties in the system of atoms interacting with coupled cavities

    Lu Dao-Ming
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    • 本文研究将两个二能级原子分别注入耦合腔A和B中,并且原子与腔场发生共振相互作用的情况.采用Negativity熵度量两子系统间的纠缠,利用数值计算方法研究了两个原子之间、腔内原子与腔场之间和两个腔场之间的纠缠性质.讨论了腔场间的耦合强度对纠缠特性的影响.研究结果表明:随腔场间耦合的增强,两原子间的纠缠增强,而原子与腔场间和两腔场间的纠缠减弱.
      We study the entanglement dynamics of the system composed of two two-level atoms resonantly interacting with two coupled cavities. The evolutions of atom-atom entanglement, cavity-cavity entanglement and atom-cavity entanglement are investigated. The influence of coupling constant between cavities on entanglement property is discussed. The numerical results show that atom-atom entanglement property is strengthened while atom-cavity entanglement property and cavity-cavity entanglement property are weakened with the increasing of the coupling constant between cavities.
        • 基金项目:福建省自然科学基金(批准号:2008J0217)资助的课题.
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      出版历程
      • 收稿日期:2010-11-30
      • 修回日期:2010-12-30
      • 刊出日期:2011-09-15

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