非均匀外磁场下具有非线性耦合的双三能级系统的热纠缠
量子物理
2008-11-04 v2
摘要
我们研究了存在非均匀磁场情况下,具有非线性耦合的双三能级(2-qutrit)自旋链的热纠缠。任意(有限维) 部分系统的热纠缠会在某个有限阈值温度 处消失。针对该双三能级系统,我们 investigated 对系统参数(即非线性耦合和磁场)的依赖关系。此外,我们比较了该系统 I-并发度(I-concurrence)的两个下界,并研究了其密集编码容量随系统参数的变化。
引用
@article{arxiv.0705.3568,
title = {Thermal entanglement in a two-qutrit system with nonlinear coupling under nonuniform external magnetic field},
author = {Iman Sargolzahi and Sayyed Yahya Mirafzali and Mohsen Sarbishaei},
journal= {arXiv preprint arXiv:0705.3568},
year = {2008}
}
备注
18 pages, 6 figures; The revised version, Some more sections and references are added