Two-qubit entanglement in an antiferromagnetic environment

被引：9
|
作者：
Yuan, XZ [1 ]
Zhu, KD [1 ]
Wu, ZJ [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL D | 2005年 / 33卷 / 01期
关键词：
Spectroscopy; Neural Network; State Physics; Complex System; Nonlinear Dynamics;
D O I：
10.1140/epjd/e2005-00023-y
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Using the spin wave approximation, we study the entanglement of a two-spin system in an antiferromagnetic environment. It is shown analytically that the concurrence of the two-spin system displays a Gaussian decay and depends on the quantum correlations and the structure of the environment. The relation between the concurrence and the environmental temperature is given explicitly.
引用
收藏
页码：129 / 132
页数：4
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