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

Type
Label
  • Competing superfluid and density-wave ground-states of fermionic mixtures with mass imbalance in optical lattices (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.76.104517 (literal)
Alternative label
  • Tung-Lam Dao (1); Antoine Georges (1); Massimo Capone (2) (2007)
    Competing superfluid and density-wave ground-states of fermionic mixtures with mass imbalance in optical lattices
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Tung-Lam Dao (1); Antoine Georges (1); Massimo Capone (2) (literal)
Pagina inizio
  • 104517 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://link.aps.org/doi/10.1103/PhysRevB.76.104517 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 76 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 6 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 10 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) Centre de Physique Théorique, École Polytechnique, CNRS, 91128 Palaiseau Cedex, France (2) SMC, CNR-INFM and Dipartimento di Fisica, \"Sapienza\" Universitá di Roma, Piazzale Aldo Moro 2, I-00185 Roma, Italy and ISC-CNR, Via dei Taurini 19, I-00185 Roma, Italy (literal)
Titolo
  • Competing superfluid and density-wave ground-states of fermionic mixtures with mass imbalance in optical lattices (literal)
Abstract
  • We 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. (literal)
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