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论文类型：期刊论文

第一作者：Nie, Jing

通讯作者：Nie, J (reprint author), Liaoning Univ Sci & Technol, Sch Sci, Anshan 114051, Peoples R China.

合写作者：Yang, Xiuyi,Yu, Qing-Xu,Li, Chong

发表时间：2014-04-01

发表刊物：INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS

收录刊物：SCIE、Scopus

卷号：53

期号：4

页面范围：1159-1167

ISSN号：0020-7748

关键字：Non-Markovian; Spin bath; Boson reservoir

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.