Exact Solution of a Hubbard Chain with Bond-Charge Interaction

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dc.creatorAligia, A. A.
dc.creatorArrachea, L.
dc.date1994-06-30
dc.date.accessioned2026-07-07T03:07:19Z
dc.date.available2026-07-07T03:07:19Z
dc.descriptionWe obtain the exact solution of a general Hubbard chain with kinetic energy $t$, bond-charge interaction $X$ and on-site interaction $U$ with the only restriction $t = X$. At zero temperature and half filling, the model exhibits a Mott transition at $U = 4t$. In the metallic phase and near half filling, superconducting states are part of the degenerate ground state and are favored for small $U$ if the system is slightly perturbed.
dc.description10 pages, no figures, LATEX, CNEA-CAB 3305
dc.identifierhttps://arxiv.org/abs/cond-mat/9406122
dc.identifierhttp://arxiv.org/abs/cond-mat/9406122
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/27130
dc.subjectCondensed Matter
dc.titleExact Solution of a Hubbard Chain with Bond-Charge Interaction
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