Phase Diagram for Ultracold Bosons in Optical Lattices and Superlattices

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dc.creatorBuonsante, Pierfrancesco
dc.creatorVezzani, Alessandro
dc.date2004-05-12
dc.date2004-10-04
dc.date.accessioned2026-07-07T02:58:07Z
dc.date.available2026-07-07T02:58:07Z
dc.descriptionWe present an analytic description of the finite-temperature phase diagram of the Bose-Hubbard model, successfully describing the physics of cold bosonic atoms trapped in optical lattices and superlattices. Based on a standard statistical mechanics approach, we provide the exact expression for the boundary between the superfluid and the normal fluid by solving the self-consistency equations involved in the mean-field approximation to the Bose-Hubbard model. The zero-temperature limit of such result supplies an analytic expression for the Mott lobes of superlattices, characterized by a critical fractional filling.
dc.description8 pages, 6 figures, submitted to Phys. Rev. A
dc.identifierhttps://arxiv.org/abs/cond-mat/0405254
dc.identifierhttp://arxiv.org/abs/cond-mat/0405254
dc.identifierPhys. Rev. A 70, 033608 (2004)
dc.identifierdoi:10.1103/PhysRevA.70.033608
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/23949
dc.subjectSoft Condensed Matter
dc.subjectStatistical Mechanics
dc.titlePhase Diagram for Ultracold Bosons in Optical Lattices and Superlattices
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