Thermal Entanglement in a Two-Qubit Ising Chain Subjected to Dzyaloshinsky-Moriya Interaction

被引：0
|
作者：
BGDivyamani [1 ,2 ]
Sudha [1 ,3 ]
机构：
[1] Department of Physics,Kuvempu University,Shankaraghatta,Shimoga- ,India
[2] Tunga Mahavidyalaya,Tirthahalli,Shimoga- ,India
[3] Inspire Institute
来源：
Chinese Physics Letters | 2013年 / 30卷 / 12期
关键词：
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：
Thermal entanglement of a two-qubit Ising chain subjected to an external magnetic field and DzyaloshinskyMoriya(DM)interaction is examined.The effect of magnetic field,strength of DM interaction and temperature are analyzed by adopting negativity of partial transpose as the measure of entanglement.It is shown that when the DM interaction along the Ising axis is considerable,thermal entanglement can be sustained for a higher temperature.The usefulness of longitudinal DM interaction over the one that is perpendicular to the Ising axis,in the manipulation and control of entanglement at a feasible temperature,is illustrated.
引用
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页码：9 / 12
页数：4
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