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题名: Continuous quantum phase transition between two topologically distinct valence bond solid states associated with the same spin value
作者: Zheng, D ;  Zhang, GM ;  Xiang, T ;  Lee, DH
刊名: PHYSICAL REVIEW B
出版日期: 2011
卷号: 83, 期号:1, 页码:14409
关键词: GROUND-STATES ;  ANTIFERROMAGNETS ;  BREAKING ;  MODELS ;  GAP
学科分类: Physics
通讯作者: Zheng, D (reprint author), Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
部门归属: [Zheng, Dong; Zhang, Guang-Ming] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China; [Xiang, Tao] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China; [Xiang, Tao] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; [Lee, Dung-Hai] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA; [Lee, Dung-Hai] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA
英文摘要: We propose a one-dimensional quantum Heienberg spin-2 chain, which exhibits two topologically distinct valence bond solid states in two different solvable limits. We then construct the phase diagram and study the quantum phase transition between these two states using infinite time evolving block decimation algorithms. From the scaling relation between the entanglement entropy and the correlation length, we determine that the central charge for the underlying critical conformal field theory is around two.
资助者: NSF of China; MOST-China; DOE [DE-AC02-05CH11231]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000286738600003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14436
Appears in Collections:理论物理所2011年知识产出_期刊论文

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Recommended Citation:
Zheng, D,Zhang, GM,Xiang, T,et al. Continuous quantum phase transition between two topologically distinct valence bond solid states associated with the same spin value[J]. PHYSICAL REVIEW B,2011,83(1):14409.
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