Entanglement dynamics and decoherence of two-qutrit states under an XY quantum environment

被引：1
|
作者：
Ma, Xiao San [1 ]
Wang, An Min [2 ]
机构：
[1] Anhui Univ Technol, Sch Elect Engn & Informat, Maanshan 243002, Peoples R China
[2] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China
来源：
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2009年 / 388卷 / 01期
基金：
中国国家自然科学基金;
关键词：
An XY quantum environment; Entanglement dynamics; Decoherence;
D O I：
10.1016/j.physa.2008.09.031
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The time evolution of entanglement and coherence of two-qutrit states under an XY quantum environment which can exhibit a quantum phase transition has been analyzed. From our results, we find that the quantum phase transition can enhance the entanglement decay and coherence loss when the system is weakly coupled to the environment. Furthermore, the effect of the anisotropy parameter and the size of the environment on entanglement dynamics and coherence has also been discussed. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：82 / 90
页数：9
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