Sudden Death of Entanglement between Two Atoms with Initial Tripartite Entangled State in the Tavis–Cummings Model
Sudden Death of Entanglement between Two Atoms with Initial Tripartite Entangled State in the Tavis–Cummings Model
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DOI：
10.1088/0256-307x/25/3/006
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发表时间：
2008-03
影响因子：
3.5
通讯作者：
Yang Qing;Y. Ming;Zhuo-liang Cao
中科院分区：
文献类型：
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作者：
Yang Qing;Y. Ming;Zhuo-liang Cao
我们研究了 Tavis-Cummings 模型中具有初始三方纠缠 W 状状态的两个原子的纠缠动力学。我们发现纠缠演化不仅对初始态的纠缠程度敏感，而且对初始态的具体形式也敏感。所谓猝死效应只发生在某些初始状态。
We study the entanglement dynamics of two atoms with initial tripartite entangled W-like state in the Tavis–Cummings model. We find that the entanglement evolvement is sensitive not only to the entanglement degree of the initial state but also to the concrete form of the initial state. The so-called sudden death effect occurs only for some initial states.