High temperature expansion applied to fermions near Feshbach resonance

dc.creatorHo, Tin-Lun
dc.creatorMueller, Erich J
dc.date2003-06-06
dc.date2004-02-23
dc.date.accessioned2026-07-07T12:44:16Z
dc.date.available2026-07-07T12:44:16Z
dc.descriptionWe show that, apart from a difference in scale, all of the surprising recently observed properties of a degenerate Fermi gas near a Feshbach resonance persist in the high temperature Boltzmann regime. In this regime, the Feshbach resonance is unshifted. By sweeping across the resonance, a thermal distribution of bound states (molecules) can be reversibly generated. Throughout this process, the interaction energy is negative and continuous. We also show that this behavior must persist at lower temperatures unless there is a phase transition as the temperature is lowered. We rigorously demonstrate universal behavior near the resonance.
dc.description4 pages, 4 figures (3 color, 1 BW), RevTeX4; ver4 -- updated references, changed title -- version accepted for publication in Physical Review Letters
dc.identifierhttps://arxiv.org/abs/cond-mat/0306187
dc.identifierhttp://arxiv.org/abs/cond-mat/0306187
dc.identifierPhys.Rev.Lett.92:160404,2004
dc.identifierdoi:10.1103/PhysRevLett.92.160404
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/220710
dc.subjectStatistical Mechanics
dc.titleHigh temperature expansion applied to fermions near Feshbach resonance
dc.typetext

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