Two atoms in dissipative cavities in dispersive limit: entanglement sudden death and long-lived entanglement
Two atoms in dissipative cavities in dispersive limit: entanglement sudden death and long-lived entanglement
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DOI：
10.1088/0953-4075/43/2/025501
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发表时间：
2009-12
期刊：
影响因子：
--
通讯作者：
Jian-Song Zhang;Ai-xi Chen;M. Abdel-Aty
中科院分区：
文献类型：
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作者：
Jian-Song Zhang;Ai-xi Chen;M. Abdel-Aty
研究了两个空间分离的耗散腔中两个相干光场与两个二能级原子相互作用系统的纠缠动力学和相干性。特别是表明，纠缠猝死是在很短的相互作用时间内获得的。然而，经过长的相互作用时间后，一个长寿命的纠缠显示，即两个原子的初始纠缠可以部分保留。此外，两个原子的相干性不会在演化过程中丢失。
We investigate the entanglement dynamics and coherence of two two-level atoms interacting with two coherent fields of two spatially separated and dissipative cavities. It is in particular shown that entanglement sudden death is obtained within a short interaction time. However, after a long interaction time a long-lived entanglement is shown; that is, the initial entanglement of two atoms could be partially preserved. In addition, the coherence of the two atoms will not be lost during the evolution.