Critical entanglement of XXZ Heisenberg chains with defects

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	Critical entanglement of XXZ Heisenberg chains with defects
	Peschel, I; Zhao, J; Wang, XQ; Zhao, J , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
刊名	PHYSICAL REVIEW B
	2006
卷号	73 期号:2 页码:-
关键词	Entropy
ISSN号	1098-0121
英文摘要	We study the entanglement properties of anisotropic open spin one-half Heisenberg chains with a modified central bond. The entanglement entropy between the two half-chains is calculated with the density-matrix renormalization method (DMRG). We find a logarithmic behavior with an effective central charge c(') varying with the length of the system. It flows to one in the ferromagnetic region and to zero in the antiferromagnetic region of the model. In the XX case it has a nonuniversal limit and we recover previous results.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000235009300067
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/6061]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Zhao, J , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Peschel, I,Zhao, J,Wang, XQ,et al. Critical entanglement of XXZ Heisenberg chains with defects[J]. PHYSICAL REVIEW B,2006,73(2):-.
APA	Peschel, I,Zhao, J,Wang, XQ,&Zhao, J , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.(2006).Critical entanglement of XXZ Heisenberg chains with defects.PHYSICAL REVIEW B,73(2),-.
MLA	Peschel, I,et al."Critical entanglement of XXZ Heisenberg chains with defects".PHYSICAL REVIEW B 73.2(2006):-.