Trapped fermi gases in rotating optical lattices: realization and detection of the topological hofstadter insulator

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dc.citation.issueNumber7en_US
dc.citation.volumeNumber100en_US
dc.contributor.authorUmucalilar, R. O.en_US
dc.contributor.authorZhai, H.en_US
dc.contributor.authorOktel, M. Ö.en_US
dc.date.accessioned2016-02-08T10:10:14Z
dc.date.available2016-02-08T10:10:14Z
dc.date.issued2008en_US
dc.departmentDepartment of Physicsen_US
dc.description.abstractWe consider a gas of noninteracting spinless fermions in a rotating optical lattice and calculate the density profile of the gas in an external confinement potential. The density profile exhibits distinct plateaus, which correspond to gaps in the single particle spectrum known as the Hofstadter butterfly. The plateaus result from insulating behavior whenever the Fermi energy lies within a gap. We discuss the necessary conditions to realize the Hofstadter insulator in a cold atom setup and show how the quantized Hall conductance can be measured from density profiles using the Středa formula.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T10:10:14Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2008en
dc.identifier.doi10.1103/PhysRevLett.100.070402en_US
dc.identifier.eissn1079-7114
dc.identifier.issn0031-9007
dc.identifier.urihttp://hdl.handle.net/11693/23201
dc.language.isoEnglishen_US
dc.publisherThe American Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevLett.100.070402en_US
dc.source.titlePhysical Review Lettersen_US
dc.subjectCrystal latticesen_US
dc.subjectDensity measurement (optical)en_US
dc.subjectElectric insulatorsen_US
dc.subjectHall effecten_US
dc.subjectRotationen_US
dc.subjectTopologyen_US
dc.subjectHofstadter insulatoren_US
dc.subjectRotating optical latticesen_US
dc.subjectFermi levelen_US
dc.titleTrapped fermi gases in rotating optical lattices: realization and detection of the topological hofstadter insulatoren_US
dc.typeArticleen_US

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