Pair correlations of a spin-imbalanced Fermi gas on two-leg ladders

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dc.creatorFeiguin, A. E.
dc.creatorHeidrich-Meisner, F.
dc.date2008-09-09
dc.date2009-02-04
dc.date.accessioned2026-07-07T12:51:16Z
dc.date.available2026-07-07T12:51:16Z
dc.descriptionWe study the pair correlations of a spin-imbalanced two-leg ladder with attractive interactions, using the density matrix renormalization group method (DMRG). We identify regions in the phase diagram spanned by the chemical potential and the magnetic field that can harbor Fulde-Ferrell-Larkin-Ovchinnikov (FFLO)-like physics. Results for the pair structure factor, exhibiting multiple pairing wave-vectors, substantiate the presence of FFLO-like correlations. We further discuss phase separation scenarios induced by a harmonic trap, which differ from the case of isolated chains.
dc.descriptionTo appear in Phys. Rev. Lett.; minor revisions
dc.identifierhttps://arxiv.org/abs/0809.1539
dc.identifierhttp://arxiv.org/abs/0809.1539
dc.identifierPhys.Rev.Lett.102:076403,2009
dc.identifierdoi:10.1103/PhysRevLett.102.076403
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/222938
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titlePair correlations of a spin-imbalanced Fermi gas on two-leg ladders
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