Bose-Hubbard phase diagram with arbitrary integer filling

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dc.creatorTeichmann, Niklas
dc.creatorHinrichs, Dennis
dc.creatorHolthaus, Martin
dc.creatorEckardt, Andre
dc.date2008-10-03
dc.date2009-03-11
dc.date.accessioned2026-07-07T12:50:44Z
dc.date.available2026-07-07T12:50:44Z
dc.descriptionWe study the transition from a Mott insulator to a superfluid in both the two- and the three-dimensional Bose-Hubbard model at zero temperature, employing the method of the effective potential. Converting Kato's perturbation series into an algorithm capable of reaching high orders, we obtain accurate critical parameters for any integer filling factor. Our technique allows us to monitor both the approach to the mean-field limit by considering spatial dimensionalities $d > 3$, and to the quantum rotor limit of high filling, which refers to an array of Josephson junctions.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0810.0643
dc.identifierhttp://arxiv.org/abs/0810.0643
dc.identifierPhys. Rev. B 79, 100503(R) (2009)
dc.identifierdoi:10.1103/PhysRevB.79.100503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/222772
dc.subjectOther Condensed Matter
dc.titleBose-Hubbard phase diagram with arbitrary integer filling
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