On Defect-Mediated Transitions in Bosonic Planar Lattices

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dc.creatorTrombettoni, A.
dc.creatorSmerzi, A.
dc.creatorSodano, P.
dc.date2005-06-04
dc.date.accessioned2026-07-07T03:05:29Z
dc.date.available2026-07-07T03:05:29Z
dc.descriptionWe discuss the finite-temperature properties of Bose-Einstein condensates loaded on a 2D optical lattice. In an experimentally attainable range of parameters the system is described by the XY model, which undergoes a Berezinskii-Kosterlitz-Thouless (BKT) transition driven by the vortex pair unbinding. The interference pattern of the expanding condensates provides the experimental signature of the BKT transition: near the critical temperature, the k=0 component of the momentum distribution sharply decreases.
dc.identifierhttps://arxiv.org/abs/cond-mat/0506108
dc.identifierhttp://arxiv.org/abs/cond-mat/0506108
dc.identifierLaser Physics 15, 669 (2005)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/26467
dc.subjectStatistical Mechanics
dc.titleOn Defect-Mediated Transitions in Bosonic Planar Lattices
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