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题名: Class of exactly solvable SO(n) symmetric spin chains with matrix product ground states
作者: Tu, Hong-Hao ;  Zhang, Guang-Ming ;  Xiang, Tao
刊名: PHYSICAL REVIEW B
出版日期: 2008
卷号: 78, 期号:9, 页码:-
关键词: NEAREST-NEIGHBOR INTERACTION ;  ISOTROPIC HEISENBERG CHAIN ;  PURE BIQUADRATIC EXCHANGE ;  MONTE-CARLO CALCULATION ;  ORBITAL MODEL ;  QUANTUM ANTIFERROMAGNETS ;  ARBITRARY SPINS ;  HALDANE PHASE ;  VERTEX MODELS ;  ONE DIMENSION
学科分类: Physics
通讯作者: Zhang, GM , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
部门归属: [Tu, HH; Zhang, GM] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China; [Xiang, T] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China; [Xiang, T] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: We introduce a class of exactly solvable SO(n) symmetric Hamiltonians with matrix product ground states. For an odd n >= 3 case, the ground state is a translational invariant Haldane gap spin liquid state; while for an even n >= 4 case, the ground state is a spontaneously dimerized state with twofold degeneracy. In the matrix product ground states for both cases, we identify a hidden antiferromagnetic order, which is characterized by nonlocal string order parameters. The ground-state phase diagram of a generalized SO(n) symmetric bilinear-biquadratic model is discussed.
资助者: NSF of China; National Program for Basic Research of MOST-China
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000259689700050
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5463
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:
Tu, Hong-Hao,Zhang, Guang-Ming,Xiang, Tao. Class of exactly solvable SO(n) symmetric spin chains with matrix product ground states[J]. PHYSICAL REVIEW B,2008,78(9):-.
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