Search for quantum dimer phases and transitions in a frustrated spin ladder

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dc.creatorHung, Hsiang-Hsuan
dc.creatorGong, Chang-De
dc.creatorChen, Yung-Chung
dc.creatorYang, Min-Fong
dc.date2006-05-30
dc.date.accessioned2026-07-07T07:09:16Z
dc.date.available2026-07-07T07:09:16Z
dc.descriptionA two-leg spin-1/2 ladder with diagonal interactions is investigated numerically. We focus our attention on the possibility of columnar dimer phase, which was recently predicted based on a reformulated bosonization theory. By using density matrix renormalization group technique and exact diagonalization method, we calculate columnar dimer order parameter, spin correlation on a rung, string order parameters, and scaled excitation gaps. Carefully using various finite-size scaling techniques, our results show no support for the existence of columnar dimer phase in the spin ladder under consideration.
dc.description5 pages, 4 figures. To be published in Phys. Rev. B
dc.identifierhttps://arxiv.org/abs/cond-mat/0605719
dc.identifierhttp://arxiv.org/abs/cond-mat/0605719
dc.identifierPhys. Rev. B 73, 224433 (2006)
dc.identifierdoi:10.1103/PhysRevB.73.224433
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/111000
dc.subjectStrongly Correlated Electrons
dc.subjectStatistical Mechanics
dc.titleSearch for quantum dimer phases and transitions in a frustrated spin ladder
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