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dc.contributor.authorCampo Jr., V.L.
dc.contributor.authorCapelle, K.
dc.contributor.authorHooley, Chris
dc.contributor.authorQuintanilla, J.
dc.contributor.authorScarola, V.W.
dc.date.accessioned2014-06-05T16:01:00Z
dc.date.available2014-06-05T16:01:00Z
dc.date.issued2012-03-29
dc.identifier.citationCampo Jr. , V L , Capelle , K , Hooley , C , Quintanilla , J & Scarola , V W 2012 , ' Thermal versus quantum fluctuations of optical-lattice fermions ' , Physical Review. A, Atomic, molecular, and optical physics , vol. 85 , no. 3 , 033644 . https://doi.org/10.1103/PhysRevA.85.033644en
dc.identifier.issn1050-2947
dc.identifier.otherPURE: 21245711
dc.identifier.otherPURE UUID: e06fd227-a27a-495d-b07e-b01781b483d5
dc.identifier.otherScopus: 84859112244
dc.identifier.otherORCID: /0000-0002-9976-2405/work/27144569
dc.identifier.urihttp://hdl.handle.net/10023/4858
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 nonmonotonic 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.
dc.format.extent5
dc.language.isoeng
dc.relation.ispartofPhysical Review. A, Atomic, molecular, and optical physicsen
dc.rights© 2012 American Physical Societyen
dc.subjectQC Physicsen
dc.subject.lccQCen
dc.titleThermal versus quantum fluctuations of optical-lattice fermionsen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews.The University of St Andrewsen
dc.contributor.institutionUniversity of St Andrews.Condensed Matter Physicsen
dc.identifier.doihttps://doi.org/10.1103/PhysRevA.85.033644
dc.description.statusPeer revieweden


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