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J-C模型中原子—腔场的纠缠随时间的演化 被引量:1

Evolution of Atom-cavity Entanglement Versus Time in J-C Model
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摘要 分别利用度量纯态纠缠的两种常用方法-von Neumann熵和共生纠缠,探讨了单光子J-C模型中和双光子J-C模型中原子-腔场的纠缠随时间的演化,并得出了此纠缠随时间演化的规律. we investigate the evolution of atom-cavity entanglement versus time in single-photon J-C model and twophoton J-C model by means of yon Neumann entropy and concurrence, respeetively; and at the same time, we find out the evolution law of entanglement versus time.
作者 于立志
出处 《阜阳师范学院学报(自然科学版)》 2007年第2期13-15,37,共4页 Journal of Fuyang Normal University(Natural Science)
关键词 量子信息学 纠缠 J-C模型 von Neumann熵 共生纠缠 quantum information theory entanglement Jaynes-Cummings model yon neumann entropy concurrence
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