Entanglement Dynamics of Two Coupled Spins in a Spin Star Environment

被引：2
|
作者：
Nie, Jing [1 ,2 ]
Yang, Xiuyi [2 ]
Yu, Qing-Xu [1 ]
Li, Chong [1 ]
机构：
[1] Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China
[2] Liaoning Univ Sci & Technol, Sch Sci, Anshan 114051, Peoples R China
来源：
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2014年 / 53卷 / 04期
关键词：
Non-Markovian; Spin bath; Boson reservoir; NON-MARKOVIAN DYNAMICS; QUANTUM;
D O I：
10.1007/s10773-013-1911-x
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We theoretically study the entanglement dynamics of two coupled spins in a spin star environment, whose elements are coupled to local bosonic baths. It is shown that the dynamics of the entanglement depends on the initial state of the system and the coupling strength between the two coupled central spins, the interactions between the central system and the environment, as well as interactions between the bath spin and the reservoir. We also investigate the effect of non-Markovian dynamics in contrast with the Markovian case. It is found that the non-Markovian dynamics has a significant effect on the disentanglement between the two central spins.
引用
收藏
页码：1159 / 1167
页数：9
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