Entanglement in dimerized and frustrated spin-one Heisenberg chains

被引：30
|
作者：
Sun, Z [1 ]
Wang, XG [1 ]
Li, YQ [1 ]
机构：
[1] Zhejiang Univ, Dept Phys, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China
来源：
NEW JOURNAL OF PHYSICS | 2005年 / 7卷
关键词：
D O I：
10.1088/1367-2630/7/1/083
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate entanglement properties in dimerized and frustrated spin-one models by applying the concept of negativity. On the basis of the relation between negativity and correlators, negativities are numerically calculated. We study the effects of dimerization and frustration on entanglement. We also consider the case of finite temperature, and determine the threshold temperature before which the thermal state is doomed to be entangled.
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页数：14
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