Rotating Bose-Einstein condensates: Closing the gap between exact and mean-field solutions

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dc.contributor.authorCremon, J. C.
dc.contributor.authorJackson, A. D.
dc.contributor.authorKarabulut, E. O.
dc.contributor.authorKavoulakis, G. M.
dc.contributor.authorMottelson, B. R.
dc.contributor.authorReimann, S. M.
dc.date.accessioned2020-03-26T19:06:58Z
dc.date.available2020-03-26T19:06:58Z
dc.date.issued2015
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractWhen a Bose-Einstein-condensed cloud of atoms is given some angular momentum, it forms vortices arranged in structures with a discrete rotational symmetry. For these vortex states, the Hilbert space of the exact solution separates into a "primary" space related to the mean-field Gross-Pitaevskii solution and a "complementary" space including the corrections beyond mean field. Considering a weakly interacting Bose-Einstein condensate of harmonically trapped atoms, we demonstrate how this separation can be used to close the conceptual gap between exact solutions for systems with only a few atoms and the thermodynamic limit for which the mean field is the correct leading-order approximation. Although we illustrate this approach for the case of weak interactions, it is expected to be more generally valid.en_US
dc.description.sponsorshipSwedish Research CouncilSwedish Research Council; Nanometer Structure Consortium at Lund University; POLATOM ESF research networking programen_US
dc.description.sponsorshipWe thank C.J. Pethick for discussions and helpful comments. This work was financially supported by the Swedish Research Council and the Nanometer Structure Consortium at Lund University and the POLATOM ESF research networking program.en_US
dc.identifier.doi10.1103/PhysRevA.91.033623en_US
dc.identifier.issn1050-2947en_US
dc.identifier.issn1094-1622en_US
dc.identifier.issue3en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.urihttps://dx.doi.org/10.1103/PhysRevA.91.033623
dc.identifier.urihttps://hdl.handle.net/20.500.12395/32522
dc.identifier.volume91en_US
dc.identifier.wosWOS:000352074800005en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAMER PHYSICAL SOCen_US
dc.relation.ispartofPHYSICAL REVIEW Aen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.titleRotating Bose-Einstein condensates: Closing the gap between exact and mean-field solutionsen_US
dc.typeArticleen_US

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