Improving quantum state transfer in a general XY chain via the Dzyaloshinsky Moriya interaction

被引：0
|
作者：
张剑 [1 ]
绍彬 [2 ]
邹健 [2 ]
李前树 [3 ]
机构：
[1] Department of Chemistry, School of Sciences, Beijing Institute of Technology
[2] Key Laboratory of Cluster Science of Ministry of Education and Department of Physics, School of Sciences, Beijing Institute of Technology
[3] Institute of Chemical Physics, Beijing Institute of Technology
来源：
Chinese Physics B | 2011年 / 20卷 / 10期
基金：
中国国家自然科学基金;
关键词：
state transfer; XY spin chain; Dzyaloshinsky–Moriya interaction;
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：
We study the state transfer of Bell states in a general XY spin chain using the Dzyaloshinsky-Moriya interaction. Two symmetries of fidelity with the anisotropy parameter are found. The maximum fidelity is shown to be significantly enhanced in cases of an odd number of sites. Enhancement of fidelity on a singlet state is greater than that on the other Bell states in such cases.
引用
收藏
页码：51 / 60
页数：10
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