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Effect of disorder close to the superfluid transition in a two-dimensional Bose gas

hal.structure.identifierLaboratoire Charles Fabry / Optique atomique
dc.contributor.authorALLARD, Baptiste
hal.structure.identifierLaboratoire Charles Fabry / Optique atomique
dc.contributor.authorPLISSON, Thomas
hal.structure.identifierLaboratoire de Physique Théorique de la Matière Condensée [LPTMC]
hal.structure.identifierLaboratoire de physique et modélisation des milieux condensés [LPM2C]
dc.contributor.authorHOLZMANN, Markus
hal.structure.identifierLaboratoire Charles Fabry / Optique atomique
dc.contributor.authorSALOMON, Guillaume
hal.structure.identifierLaboratoire Charles Fabry / Optique atomique
dc.contributor.authorASPECT, Alain
hal.structure.identifierlp2n-02,lp2n-11
hal.structure.identifierLaboratoire Charles Fabry / Optique atomique
dc.contributor.authorBOUYER, Philippe
hal.structure.identifierLaboratoire Charles Fabry / Optique atomique
dc.contributor.authorBOURDEL, Thomas
dc.date.accessioned2023-05-12T10:26:56Z
dc.date.available2023-05-12T10:26:56Z
dc.date.created2011-12-05
dc.date.issued2012
dc.identifier.issn1050-2947
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/181287
dc.description.abstractEnWe experimentally study the effect of disorder on trapped quasi two-dimensional (2D) 87Rb clouds in the vicinity of the Berezinskii-Kosterlitz-Thouless (BKT) phase transition. The disorder correlation length is of the order of the Bose gas characteristic length scales (thermal de Broglie wavelength, healing length) and disorder thus modifies the physics at a microscopic level. We analyze the coherence properties of the cloud through measurements of the momentum distributions, for two disorder strengths, as a function of its degeneracy. For moderate disorder, the emergence of coherence remains steep but is shifted to a lower entropy. In contrast, for strong disorder, the growth of coherence is hindered. Our study is an experimental realization of the dirty boson problem in a well controlled atomic system suitable for quantitative analysis.
dc.language.isoen
dc.publisherAmerican Physical Society
dc.title.enEffect of disorder close to the superfluid transition in a two-dimensional Bose gas
dc.typeArticle de revue
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Gaz Quantiques [cond-mat.quant-gas]
dc.identifier.arxiv1112.0985
bordeaux.journalPhysical Review A : Atomic, molecular, and optical physics [1990-2015]
bordeaux.page033602
bordeaux.volume85
bordeaux.hal.laboratoriesLaboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298*
bordeaux.issue3
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-00648438
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00648438v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20A%20:%20Atomic,%20molecular,%20and%20optical%20physics%20%5B1990-2015%5D&rft.date=2012&rft.volume=85&rft.issue=3&rft.spage=033602&rft.epage=033602&rft.eissn=1050-2947&rft.issn=1050-2947&rft.au=ALLARD,%20Baptiste&PLISSON,%20Thomas&HOLZMANN,%20Markus&SALOMON,%20Guillaume&ASPECT,%20Alain&rft.genre=article


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