Effective field theory and cold Fermi gases near unitary limit

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dc.creatorKrippa, Boris
dc.date2007-06-27
dc.date2007-11-14
dc.date.accessioned2026-07-07T11:41:22Z
dc.date.available2026-07-07T11:41:22Z
dc.descriptionWe study a dynamics of ultracold Fermi-gases near the unitary limit in the framework of Effective Field Theory. It is shown that, while one can obtain a reasonable description of the universal proportionality constant both in the narrow and the broad Feshbach resonance limits, the reguirement of the reparametrisation invariance leads to appearance of the three body forces needed to cancel the otherwise arising off-shell uncertainties. The size of the unsertainties is estimated.
dc.description13 pages, 3 figures, version accepted for publication
dc.identifierhttps://arxiv.org/abs/0706.4000
dc.identifierhttp://arxiv.org/abs/0706.4000
dc.identifierPhys.Rev.A75:053622,2007
dc.identifierdoi:10.1103/PhysRevA.75.053622
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200509
dc.subjectSuperconductivity
dc.subjectNuclear Theory
dc.titleEffective field theory and cold Fermi gases near unitary limit
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