On conditions for atomic entanglement sudden death in cavity QED

On conditions for atomic entanglement sudden death in cavity QED
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腔内原子纠缠猝死的QED条件

DOI:
10.1088/0953-4075/41/8/085503
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发表时间:
2008-04
影响因子:
1.6
通讯作者:
An, Nguyen Ba
An, Nguyen Ba
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Man, Zhong-Xiao;Xia, Yun-Jie;An, Nguyen Ba

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在本文中,我们研究了与腔场耦合的原子的纠缠动力学。我们所考虑的条件不仅由原子初始态的纯度决定,还由腔光子数决定。通过研究……内的三种不同模型
In this paper, we study the entanglement dynamics of atoms coupled to cavity fields. We consider conditions characterized not only by the purity of the atomic initial state but also by the cavity photon number. By studying three different models within the framework of cavity QED, we show that the so-called atomic entanglement sudden death always occurs if initially the atomic state is sufficiently impure and/or the cavity photon number is nonzero.
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