Multipartite entanglement dynamics and decoherence

被引：14

作者：

Ma, XS ^{[1
]}

Wang, AM ^{[1
]}

Yang, XD ^{[1
]}

Xu, F ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Modern Phys, Anhua 230026, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL D | 2006年 / 37卷 / 01期

关键词：

D O I：

10.1140/epjd/e2005-00247-9

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the dynamics of multipartite entanglement tinder decoherence induced by the environment consisting of a fermionic bath. Based on the algebraic measure of entanglement-negativity,. we analyze the time evolution of entanglement of both pure states and mixed ones, and find that entanglement evolution depends on both bath temperature and the number of qubits of the system. A linear space S-LDF which is dynamically decoupled from the environment, is identified in the sense of linear entropy to symbolize the environment effect.

引用

页码：135 / 140

页数：6

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