Entanglement dynamics and transfer in a double Jaynes-Cummings model

被引:14
作者
Han Feng [1 ]
机构
[1] Jining Univ, Dept Phys, Jining 273155, Peoples R China
来源
CHINESE SCIENCE BULLETIN | 2010年 / 55卷 / 17期
基金
中国国家自然科学基金;
关键词
entanglement sudden death; multipartite entanglement; double Jaynes-Cummings model; SUDDEN-DEATH; QUANTUM; STATES; ENTROPY; SYSTEM; ATOM;
D O I
10.1007/s11434-010-3149-9
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
We study the entanglement dynamics for a double Jaynes-Cummings model where two entangled atoms A and B locally interact with independent cavities a and b, respectively, but there are no interactions between locations Aa and Bb. We point out that there exists a parameter range in which simultaneous pairwise entanglement sudden death (ESD) for remote parties, i.e. AB, ab, Ab and Ba, may occur. We show that during this simultaneous ESD period various multipartite entanglement can be created. Our results imply that the pairwise entanglement between two independent locations may be transferred into other multipartite forms which account for the correlations between the two independent locations.
引用
收藏
页码:1758 / 1762
页数:5
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