Influence of the Stark Shift on Entanglement Sudden Death and Birth in Cavity QED

Influence of the Stark Shift on Entanglement Sudden Death and Birth in Cavity QED
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斯塔克位移对腔内 QED 纠缠猝死和诞生的影响

DOI:
10.1088/0256-307x/28/1/010301
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发表时间:
2011
影响因子:
3.5
通讯作者:
Wu Kun-Hua
Wu Kun-Hua
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Zhang Jian-Song;Chen Ai-Xi;Wu Kun-Hua

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We investigate the entanglement dynamics of two two-level atoms interacting with two vacuum fields of two spatially separated cavities with the Stark effects by employing the concurrence. It is shown that the entanglement sudden death (ESD) and birth (ESB) could be controlled by adjusting the Stark-shift parameters. If the Stark-shift parameters are chosen appropriately, then ESD and ESB phenomena will appear. In addition, the appearance of ESD before or after ESB depends on the Stark-shift values.
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