Thermal versus quantum fluctuations of optical-lattice fermions

dc.contributor.authorCampo, V. L.en
dc.contributor.authorCapelle, K.en
dc.contributor.authorHooley, C.en
dc.contributor.authorQuintanilla, J.en
dc.contributor.authorScarola, Vito W.en
dc.contributor.departmentPhysicsen
dc.date.accessioned2017-02-20T19:43:17Zen
dc.date.available2017-02-20T19:43:17Zen
dc.date.issued2012-03-29en
dc.description.abstractWe show that, for fermionic atoms in a one-dimensional optical lattice, the fraction of atoms in doubly occupied sites is a highly non-monotonic function of temperature. We demonstrate that this property persists even in the presence of realistic harmonic confinement, and that it leads to a suppression of entropy at intermediate temperatures that offers a route to adiabatic cooling. Our interpretation of the suppression is that such intermediate temperatures are simultaneously too high for quantum coherence and too low for significant thermal excitation of double occupancy thus offering a clear indicator of the onset of quantum fluctuations.en
dc.description.versionPublished versionen
dc.format.extent5 pagesen
dc.identifier.doihttps://doi.org/10.1103/PhysRevA.85.033644en
dc.identifier.issn2469-9926en
dc.identifier.issue3en
dc.identifier.orcidScarola, VW [0000-0002-8653-2723]en
dc.identifier.urihttp://hdl.handle.net/10919/75087en
dc.identifier.volume85en
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.relation.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000302103000008&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=930d57c9ac61a043676db62af60056c1en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectOpticsen
dc.subjectPhysics, Atomic, Molecular & Chemicalen
dc.subjectPhysicsen
dc.subjectMOTT INSULATORen
dc.subjectHUBBARD-MODELen
dc.subjectPHYSICSen
dc.subjectGASESen
dc.titleThermal versus quantum fluctuations of optical-lattice fermionsen
dc.title.serialPhysical Review Aen
dc.typeArticle - Refereeden
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Scienceen
pubs.organisational-group/Virginia Tech/Science/COS T&R Facultyen
pubs.organisational-group/Virginia Tech/Science/Physicsen

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