Nonequilibrium dynamics and thermodynamics of a degenerate Fermi gas across a Feshbach resonance

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dc.creatorAndreev, A. V.
dc.creatorGurarie, V.
dc.creatorRadzihovsky, L.
dc.date2004-04-30
dc.date.accessioned2026-07-07T06:19:32Z
dc.date.available2026-07-07T06:19:32Z
dc.descriptionWe consider a two-species degenerate Fermi gas coupled by a diatomic Feshbach resonance. We show that the resulting superfluid can exhibit a form of coherent BEC-to-BCS oscillations in response to a nonadiabatic change in the system's parameters, such as for example a sudden shift in the position of the Feshbach resonance. In the narrow resonance limit, the resulting soliton-like collisionless dynamics can be calculated analytically. In equilibrium the thermodynamics can be accurately computed across the full range of BCS-BEC crossover, with corrections controlled by the ratio of the resonance width to the Fermi energy.
dc.identifierhttps://arxiv.org/abs/cond-mat/0404724
dc.identifierhttp://arxiv.org/abs/cond-mat/0404724
dc.identifierPhys. Rev. Lett. 93, 130402 (2004)
dc.identifierdoi:10.1103/PhysRevLett.93.130402
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/95070
dc.subjectSuperconductivity
dc.subjectStatistical Mechanics
dc.titleNonequilibrium dynamics and thermodynamics of a degenerate Fermi gas across a Feshbach resonance
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