Class of exactly solvable SO(n) symmetric spin chains with matrix product ground states

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dc.creatorTu, Hong-Hao
dc.creatorZhang, Guang-Ming
dc.creatorXiang, Tao
dc.date2008-06-11
dc.date2008-09-10
dc.date.accessioned2026-07-07T10:01:36Z
dc.date.available2026-07-07T10:01:36Z
dc.descriptionWe introduce a class of exactly solvable SO(n) symmetric Hamiltonians with matrix product ground states. For an odd $n\geq 3$ case, the ground state is a translational invariant Haldane gap spin liquid state; while for an even $n\geq 4$ 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.
dc.description11 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/0806.1839
dc.identifierhttp://arxiv.org/abs/0806.1839
dc.identifierPhys. Rev. B 78, 094404 (2008) (Editors' suggestion)
dc.identifierdoi:10.1103/PhysRevB.78.094404
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/168683
dc.subjectStrongly Correlated Electrons
dc.titleClass of exactly solvable SO(n) symmetric spin chains with matrix product ground states
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