String order and hidden topological symmetry in the SO(2n+1) symmetric matrix product states

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	String order and hidden topological symmetry in the SO(2n+1) symmetric matrix product states
	Zhang, Guang-Ming; Tu, HH , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China; Tu, Hong-Hao; Xiang, Tao
刊名	JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
	2008
卷号	41 期号:41 页码:-
关键词	Quantum Spin Chains Haldane Phase Models Antiferromagnets Breaking S=1
ISSN号	1751-8113
英文摘要	We have introduced a class of exactly soluble Hamiltonian with either SO(2n + 1) or SU(2) symmetry, whose ground states are the SO(2n + 1) symmetric matrix product states. The hidden topological order in these states can be fully identified and characterized by a set of nonlocal string order parameters. The Hamiltonian possesses a hidden (Z(2) x Z(2))(n) topological symmetry. The breaking of this hidden symmetry leads to 4(n) degenerate ground states with disentangled edge states in an open chain system. Such matrix product states can be regarded as cluster states, applicable to measurement-based quantum computation.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000259364200005
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5449]
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	Tu, HH , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Guang-Ming,Tu, HH , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China,Tu, Hong-Hao,et al. String order and hidden topological symmetry in the SO(2n+1) symmetric matrix product states[J]. JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL,2008,41(41):-.
APA	Zhang, Guang-Ming,Tu, HH , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China,Tu, Hong-Hao,&Xiang, Tao.(2008).String order and hidden topological symmetry in the SO(2n+1) symmetric matrix product states.JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL,41(41),-.
MLA	Zhang, Guang-Ming,et al."String order and hidden topological symmetry in the SO(2n+1) symmetric matrix product states".JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL 41.41(2008):-.