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Itoi, C; Qin, SJ; Affleck, I; Itoi, C , Univ British Columbia, Dept Phys & Astron, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada.
Phase diagram of a one-dimensional spin-orbital model
发表期刊PHYSICAL REVIEW B
关键词Linear Sigma-models Critical-behavior 2 Dimensions Chains Systems
摘要We study a one-dimensional spin-orbital model using both analytical and numerical methods. Renormalization group calculations are performed in the vicinity of a special integrable point in the phase diagram with SU(4) symmetry. These indicate the existence of a gapless phase in an extended region of the phase diagram, missed in previous studies. This phase is SU(4) invariant at low energies apart from the presence of different velocities for spin and orbital degrees of freedom. The phase transition into a gapped dimerized phase is in a generalized Kosterlitz-Thouless universality class. The phase diagram of this model is sketched using the density matrix renormalization group technique.
2000
ISSN1098-0121
卷号61期号:10页码:6747-6756
学科领域Physics
收录类别SCI
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被引频次:80[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13010
专题理论物理所科研产出_SCI论文
通讯作者Itoi, C , Univ British Columbia, Dept Phys & Astron, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada.
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Itoi, C,Qin, SJ,Affleck, I,et al. Phase diagram of a one-dimensional spin-orbital model[J]. PHYSICAL REVIEW B,2000,61(10):6747-6756.
APA Itoi, C,Qin, SJ,Affleck, I,&Itoi, C , Univ British Columbia, Dept Phys & Astron, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada..(2000).Phase diagram of a one-dimensional spin-orbital model.PHYSICAL REVIEW B,61(10),6747-6756.
MLA Itoi, C,et al."Phase diagram of a one-dimensional spin-orbital model".PHYSICAL REVIEW B 61.10(2000):6747-6756.
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