Effective Hamiltonian for a half-filled tetramerized ionic-Hubbard chain

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dc.creatorMenteshashvili, M.
dc.creatorChachava, N.
dc.creatorJaparidze, G. I.
dc.date2008-01-08
dc.date.accessioned2026-07-07T08:53:19Z
dc.date.available2026-07-07T08:53:19Z
dc.descriptionWe derive an effective spin Hamiltonian for the one-dimensional half-filled tetramerized ionic-Hubbard model in the limit of strong on-site repulsion. We show that the effective Hamiltonian which describes the low-energy spin sector of the model is a spin S=1/2 Heisenberg Hamiltonian with alternating nearest-neighbour exchange.
dc.description8 pages, no figures or tables
dc.identifierhttps://arxiv.org/abs/0801.1290
dc.identifierhttp://arxiv.org/abs/0801.1290
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/145579
dc.subjectStrongly Correlated Electrons
dc.titleEffective Hamiltonian for a half-filled tetramerized ionic-Hubbard chain
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