Pairing and vortex lattices for interacting fermions in optical lattices with a large magnetic field

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dc.citation.epage145301-4en_US
dc.citation.issueNumber14en_US
dc.citation.spage145301-1en_US
dc.citation.volumeNumber104en_US
dc.contributor.authorZhai, H.en_US
dc.contributor.authorUmucalılar, R. O.en_US
dc.contributor.authorOktel, M. Ö.en_US
dc.date.accessioned2016-02-08T09:59:03Z
dc.date.available2016-02-08T09:59:03Z
dc.date.issued2010en_US
dc.departmentDepartment of Physicsen_US
dc.description.abstractWe study the structure of a pairing order parameter for spin-1/2 fermions with attractive interactions in a square lattice under a uniform magnetic field. Because the magnetic translation symmetry gives a unique degeneracy in the single-particle spectrum, the pair wave function has both zero and finite-momentum components coexisting, and their relative phases are determined by a self-consistent mean-field theory. We present a microscopic calculation that can determine the vortex lattice structure in the superfluid phase for different flux densities. Phase transition from a Hofstadter insulator to a superfluid phase is also discussed.en_US
dc.identifier.doi10.1103/PhysRevLett.104.145301en_US
dc.identifier.issn0031-9007
dc.identifier.urihttp://hdl.handle.net/11693/22357
dc.language.isoEnglishen_US
dc.publisherThe American Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevLett.104.145301en_US
dc.source.titlePhysical Review Lettersen_US
dc.subjectFlux densitiesen_US
dc.subjectHofstadteren_US
dc.subjectInteracting fermionsen_US
dc.subjectMagnetic translationen_US
dc.subjectOptical latticesen_US
dc.subjectOrder parameteren_US
dc.subjectRelative phasisen_US
dc.subjectSelf-consistent mean-field theoriesen_US
dc.subjectSingle particle spectrumen_US
dc.subjectSpin-1/2 fermionsen_US
dc.subjectSquare latticesen_US
dc.subjectSuperfluid phaseen_US
dc.subjectVortex lattice structureen_US
dc.subjectVortex latticesen_US
dc.subjectCrystal latticesen_US
dc.subjectFermionsen_US
dc.subjectMagnetic fieldsen_US
dc.subjectMean field theoryen_US
dc.subjectNeodymium compoundsen_US
dc.subjectWave functionsen_US
dc.subjectPhase transitionsen_US
dc.titlePairing and vortex lattices for interacting fermions in optical lattices with a large magnetic fielden_US
dc.typeArticleen_US

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