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	Class of exactly solvable /i SO/(n) symmetric spin chains with matrix product ground states
	Hong-Hao Tu ; Guang-Ming Zhang ; Tao Xiang
	2010-10-12 ; 2010-10-12
关键词	Theoretical or Mathematical/ antiferromagnetism ground states magnetic transitions spin Hamiltonians/ exactly solvable SO(n) symmetric Hamiltonians exactly solvable SO(n) symmetric spin chains matrix product ground states translational invariant Haldane gap spin liquid state dimerized state two-fold degeneracy hidden antiferromagnetic order nonlocal string order parameters phase diagram generalized SO(n) symmetric bilinear-biquadratic model/ A7510D Crystal-field theory and spin Hamiltonians (magnetism) A7530K Magnetic phase boundaries
中文摘要	We introduce a class of exactly solvable SO(n) symmetric Hamiltonians with matrix product ground states. For an odd n >or= 3 case, the ground state is a translational invariant Haldane gap spin liquid state; while for an even n >or= 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 /i SO/(n) symmetric bilinear-biquadratic model is discussed.
语种	英语
出版者	American Physical Society by AIP ; USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/81669]
专题	清华大学
推荐引用方式 GB/T 7714	Hong-Hao Tu,Guang-Ming Zhang,Tao Xiang. Class of exactly solvable /i SO/(n) symmetric spin chains with matrix product ground states[J],2010, 2010.
APA	Hong-Hao Tu,Guang-Ming Zhang,&Tao Xiang.(2010).Class of exactly solvable /i SO/(n) symmetric spin chains with matrix product ground states..
MLA	Hong-Hao Tu,et al."Class of exactly solvable /i SO/(n) symmetric spin chains with matrix product ground states".(2010).

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