Superfluidity in the Absence of Kinetics in Spin-Orbit-Coupled Optical Lattices

dc.contributor.ISNI0000 0000 3722 2361 (Zhang, C)
dc.contributor.VIAF4042455 (Zhang, C)
dc.contributor.authorHui, Hoi-Yin
dc.contributor.authorZhang, Yongping
dc.contributor.authorZhang, Chuanwei
dc.contributor.authorScarola, V. W.
dc.contributor.utdAuthorZhang, Chuanwei
dc.date.accessioned2019-05-03T19:59:19Z
dc.date.available2019-05-03T19:59:19Z
dc.date.created2017-03-02
dc.description.abstractAt low temperatures bosons typically condense to minimize their single-particle kinetic energy while interactions stabilize superfluidity. Optical lattices with artificial spin-orbit coupling challenge this paradigm, because here kinetic energy can be quenched in an extreme regime where the single-particle band flattens. To probe the fate of superfluidity in the absence of kinetics we construct and numerically solve interaction-only tight-binding models in flatbands. We find that superfluid states arise entirely from interactions operating in quenched kinetic energy bands, thus revealing a distinct and unexpected condensation mechanism. Our results have important implications for the identification of quantum condensed phases of ultracold bosons beyond conventional paradigms.
dc.description.sponsorshipAFOSR (FA9550-15-1-0445); ARO (W911NF-16-1-0182); ARO (W911NF-12-1-0334) and the NSF (PHY-1505496).
dc.identifier.bibliographicCitationHui, Hoi-Yin, Yongping Zhang, Chuanwei Zhang, and V. W. Scarola. 2017. "Superfluidity in the absence of kinetics in spin-orbit-coupled optical lattices." Physical Review A 95(3): 033603: 1-7, doi:10.1103/PhysRevA.95.033603
dc.identifier.issn2469-9926
dc.identifier.issue3
dc.identifier.urihttps://hdl.handle.net/10735.1/6447
dc.identifier.volume95
dc.language.isoen
dc.publisherAmer Physical Soc
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevA.95.033603
dc.rights©2017 American Physical Society
dc.source.journalPhysical Review A
dc.subjectGases
dc.subjectAtoms
dc.subjectBosons
dc.subjectOptics
dc.subjectSuperfluidity
dc.titleSuperfluidity in the Absence of Kinetics in Spin-Orbit-Coupled Optical Lattices
dc.type.genrearticle

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