Gutzwiller study of spin-1 bosons in an optical lattice under a magnetic field

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dc.creatorKimura, Takashi
dc.creatorTsuchiya, Shunji
dc.creatorYamashita, Makoto
dc.creatorKurihara, Susumu
dc.date2005-06-18
dc.date2005-07-06
dc.date.accessioned2026-07-07T03:05:41Z
dc.date.available2026-07-07T03:05:41Z
dc.descriptionWe study spin-1 bosons in an optical lattice under a magnetic field by the Gutzwiller approximation. Our results thus obtained join the discontinuous phase boundary curves obtained by perturbative studies through a first-order transition. On the phase boundary curve, we also find a peculiar cusp structure originating from the degeneracy between different spin Mott states under a magnetic field. The magnetic field dependence of both fluctuation in the total number of bosons and the spin magnetization clarifies that the superfluid phase is divided into two regions reflecting the coexisting first- and second-order superfluid transitions.
dc.description4 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0506466
dc.identifierhttp://arxiv.org/abs/cond-mat/0506466
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/26540
dc.subjectOther Condensed Matter
dc.titleGutzwiller study of spin-1 bosons in an optical lattice under a magnetic field
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