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题名: Critical entanglement of XXZ Heisenberg chains with defects
作者: Zhao, J ;  Peschel, I ;  Wang, XQ
刊名: PHYSICAL REVIEW B
出版日期: 2006
卷号: 73, 期号:2, 页码:-
关键词: ENTROPY
学科分类: Physics
通讯作者: Zhao, J , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Max Planck Inst Komplexer Syst, D-01187 Dresden, Germany; Free Univ Berlin, Fachbereich Phys, D-14195 Berlin, Germany; Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China
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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000235009300067
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/6061
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Zhao, J,Peschel, I,Wang, XQ. Critical entanglement of XXZ Heisenberg chains with defects[J]. PHYSICAL REVIEW B,2006,73(2):-.
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