Entanglement Entropy in an Opened Antiferromagnetic Heisenberg Chain with Alternating Interaction

被引：2
|
作者：
Ren, Jie [1 ,2 ,3 ]
Zhu, Shiqun [3 ]
机构：
[1] Changshu Inst Technol, Dept Phys, Changshu 215500, Peoples R China
[2] Changshu Inst Technol, Jiangsu Lab Adv Funct Mat, Changshu 215500, Peoples R China
[3] Suzhou Univ, Sch Phys Sci & Technol, Suzhou 215006, Jiangsu, Peoples R China
来源：
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2010年 / 49卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Entanglement entropy; Alternating interaction; STATE; COMPOUND;
D O I：
10.1007/s10773-009-0195-7
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The effects of alternating interaction on the bipartite entanglement are considered in an antiferromagnetic Heisenberg opened chain. Entropy is used to evaluate bipartite entanglement in the system. There are large oscillations between even and odd L-values entropy. The even (odd)-values entropy increases when the length of the subsystem increases. The method of density matrix renormalization-group is applied to obtain logarithmic behavior of entropy.
引用
收藏
页码：239 / 244
页数：6
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