XXX模型在与时间有关的任意外场下量子态的纠缠测度

被引:2
作者
程继文
朱钦圣
邝小渝
张仕勋
机构
[1] 四川大学原子与分子物理研究所
关键词
纠缠测度; 代数动力学; 纠缠;
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
基于代数动力学和纠缠测度的基本概念,研究了时间相关的任意外场驱动的海森堡XXX-模型下的双量子比特纠缠态随时间演化的性质.可以证明,纠缠测度仅仅由耦合常量和外场的强度决定的.通过进一步研究发现,在任意恒定外场的驱动下,热域纠缠测度是一个与耦合常量J,温度T以及外场大小有关的函数.
引用
收藏
页码:357 / 362
页数:6
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