A Mean Field Analysis of Pairing in Asymmetric Fermi Systems at Finite Temperature

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dc.creatorSharma, Rishi
dc.creatorReddy, Sanjay
dc.date2008-04-15
dc.date.accessioned2026-07-07T12:24:13Z
dc.date.available2026-07-07T12:24:13Z
dc.descriptionWe study the phase diagram of a two component Fermi system with a weak attractive interaction. Our analysis includes the leading order Hartree energy shifts and pairing correlations at finite temperature and chemical potential difference between the two fermion species. We show that in an asymmetric system, the Hartree shift to the single particle energies are important for the phase competition between normal and superfluid phase and can change the phase transition curve qualitatively. At large asymmetry we find that a novel but somewhat fragile superfluid state can be favored due to finite temperature effects. We also investigate the transition between the normal phase and an inhomogeneous superfluid phase to study how gradient instabilities evolve with temperature and asymmetry. Finally, we adopt our analysis to study the density profiles of similar asymmetric Fermi systems that are being observed in cold atom experiments.
dc.description17 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/0804.2280
dc.identifierhttp://arxiv.org/abs/0804.2280
dc.identifierPhys.Rev.A78:063609,2008
dc.identifierdoi:10.1103/PhysRevA.78.063609
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214252
dc.subjectSuperconductivity
dc.subjectStatistical Mechanics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleA Mean Field Analysis of Pairing in Asymmetric Fermi Systems at Finite Temperature
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