Collective Excitations of Trapped Imbalanced Fermion Gases

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dc.creatorLazarides, Achilleas
dc.creatorVan Schaeybroeck, Bert
dc.date2007-11-22
dc.date2008-03-17
dc.date.accessioned2026-07-07T09:30:37Z
dc.date.available2026-07-07T09:30:37Z
dc.descriptionWe present a theoretical study of the collective excitations of a trapped imbalanced fermion gas at unitarity, when the system consists of a superfluid core and a normal outer shell. We formulate the relevant boundary conditions and treat the normal shell both hydrodynamically and collisionlessly. For an isotropic trap, we calculate the mode frequencies as a function of trap polarization. Out-of-phase modes with frequencies below the trapping frequency are obtained for the case of a hydrodynamic normal shell. For the collisionless case, we calculate the monopole mode frequencies, and find that all but the lowest mode may be damped.
dc.description4 pages; accepted for publication in PRA
dc.identifierhttps://arxiv.org/abs/0711.3627
dc.identifierhttp://arxiv.org/abs/0711.3627
dc.identifierPhys. Rev. A 77, 041602(R) (2008)
dc.identifierdoi:10.1103/PhysRevA.77.041602
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/158178
dc.subjectOther Condensed Matter
dc.subjectStatistical Mechanics
dc.titleCollective Excitations of Trapped Imbalanced Fermion Gases
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