Concurrence of Quantum States: Algebraic Dynamical Method Study XXX Models in a Time-Depending Random External Field

被引：1

作者：

付传技 ^{[1
]}

朱钦圣 ^{[1
]}

邬劭轶 ^{[1
,2
]}

机构：

[1] Department of Applied Physics, University of Electronic Science and Technology of China

[2] International Centre for Materials Physics, Chinese Academy of Science

来源：

Communications in Theoretical Physics | 2010年 / 53卷 / 06期

关键词：

concurrence; algebraic dynamical method; entanglement;

D O I：

暂无

中图分类号：

O413.1 [量子力学（波动力学、矩阵力学）];

学科分类号：

070205 ; 0809 ;

摘要：

<正>Based on algebraic dynamics and the concept of the concurrence of the entanglement, we investigate the evolutive properties of the two-qubit entanglement that formed by Heisenberg XXX models under a time-depending external field. For this system, the property of the concurrence that is only dependent on the coupling constant J and total values of the external field is proved. Furthermore, we found that the thermal concurrence of the system under a static random external field is a function of the coupling constant J, temperature T, and the magnitude of external field.

引用

页码：1072 / 1076

页数：5

共 5 条

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