Competing superfluid and density-wave ground-states of fermionic mixtures with mass imbalance in optical lattices

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dc.creatorDao, Tung-Lam
dc.creatorGeorges, Antoine
dc.creatorCapone, Massimo
dc.date2007-04-20
dc.date.accessioned2026-07-07T09:32:47Z
dc.date.available2026-07-07T09:32:47Z
dc.descriptionWe study the effect of mass imbalance on the phase diagram of a two-component fermionic mixture with attractive interactions in optical lattices. Using static and dynamical mean-field theories, we show that the pure superfluid phase is stable for all couplings when the mass imbalance is smaller than a limiting value. For larger imbalance, phase separation between a superfluid and a charge-density wave takes place when the coupling exceeds a critical strength. The harmonic trap induces a spatial segregation of the two phases, with a rapid variation of the density at the boundary.
dc.descriptione.g.:4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0704.2660
dc.identifierhttp://arxiv.org/abs/0704.2660
dc.identifierPhys. Rev. B 76, 104517 (2007)
dc.identifierdoi:10.1103/PhysRevB.76.104517
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/158906
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleCompeting superfluid and density-wave ground-states of fermionic mixtures with mass imbalance in optical lattices
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