Integrable models for asymmetric Fermi superfluids: Emergence of a new exotic pairing phase

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dc.creatorDukelsky, J.
dc.creatorOrtiz, G.
dc.creatorRombouts, S. M. A.
dc.creatorVan Houcke, K.
dc.date2005-10-24
dc.date2006-05-11
dc.date.accessioned2026-07-07T12:44:17Z
dc.date.available2026-07-07T12:44:17Z
dc.descriptionWe introduce an exactly-solvable model to study the competition between the Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) and breached-pair superfluid in strongly interacting ultracold asymmetric Fermi gases. One can thus investigate homogeneous and inhomogeneous states on an equal footing and establish the quantum phase diagram. For certain values of the filling and the interaction strength, the model exhibits a new stable exotic pairing phase which combines an inhomogeneous state with an interior gap to pair-excitations. It is proven that this phase is the exact ground state in the strong coupling limit, while numerical examples demonstrate that also at finite interaction strength it can have lower energy than the breached-pair or LOFF states.
dc.descriptionRevised version accepted for publication
dc.identifierhttps://arxiv.org/abs/cond-mat/0510635
dc.identifierhttp://arxiv.org/abs/cond-mat/0510635
dc.identifierPhys.Rev.Lett.96:180404,2006
dc.identifierdoi:10.1103/PhysRevLett.96.180404
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/220717
dc.subjectOther Condensed Matter
dc.subjectSuperconductivity
dc.titleIntegrable models for asymmetric Fermi superfluids: Emergence of a new exotic pairing phase
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