Phase diagram of a cold polarized Fermi gas

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dc.creatorSon, D. T.
dc.creatorStephanov, M. A.
dc.date2005-07-25
dc.date2006-07-18
dc.date.accessioned2026-07-07T06:41:26Z
dc.date.available2026-07-07T06:41:26Z
dc.descriptionWe propose a phase diagram for a cold polarized atomic Fermi gas with zero-range interaction. We identify four main phases in the plane of density and polarization: the superfluid phase, the normal phase, the gapless superfluid phase, and the modulated phase. We argue that there exists a Lifshitz point at the junction of the normal, the gapless superfluid, and the modulated phases, and a splitting point where the superfluid, the gapless superfluid, and the modulated phases meet. We show that the physics near the splitting point is universal and derive an effective field theory describing it. We also show that subregions with one and two Fermi surfaces exist within the normal and the gapless superfluid phases.
dc.description6 pages, 5 figures; added an Appendix on the global stability of the splitting point
dc.identifierhttps://arxiv.org/abs/cond-mat/0507586
dc.identifierhttp://arxiv.org/abs/cond-mat/0507586
dc.identifierPhys.Rev. A74 (2006) 013614
dc.identifierdoi:10.1103/PhysRevA.74.013614
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/101664
dc.subjectOther Condensed Matter
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titlePhase diagram of a cold polarized Fermi gas
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