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纠缠度随相位阻尼和光频差变化规律的研究 被引量:1

A Study of the Varieation of Entanglement with the Phase Decoherence and the Detuning Parameter
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摘要 用共生纠缠度计算方法,研究了二能级原子与双模光场相互作用过程中的系统纠缠度随相位阻尼和失谐量演化的特性.结果表明:两个原子之间的纠缠呈现周期性演化规律,相位阻尼越大,纠缠曲线的振幅衰减得越快;失谐量越大,纠缠曲线的振幅也衰减得越快. The properties of entanglement in the two-level atom interaction with the optical field are studied by means of concurrence calculation.The results indictate that the degree of entanglement shows a periodical pattern of evolution,the amplitude of oscillation becoming shorter with increasing phase decoherence or detuning parameter.
出处 《西南大学学报(自然科学版)》 CAS CSCD 北大核心 2013年第7期86-89,共4页 Journal of Southwest University(Natural Science Edition)
基金 贵州省科技厅 安顺市人民政府 安顺学院联合项目(黔科合J字LKA[2012]02号) 贵州省教育厅重点课题(黔教合KY字[2012]025号)
关键词 纠缠特性 共生纠缠度 相位阻尼 失谐量 properties of entanglement concurrences phase decoherence detuning parameter
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