Critical Behavior of a Trapped Interacting Bose Gas

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dc.creatorDonner, Tobias
dc.creatorRitter, Stephan
dc.creatorBourdel, Thomas
dc.creatorÖttl, Anton
dc.creatorKöhl, Michael
dc.creatorEsslinger, Tilman
dc.date2007-04-11
dc.date.accessioned2026-07-07T08:34:53Z
dc.date.available2026-07-07T08:34:53Z
dc.descriptionThe phase transition of Bose-Einstein condensation is studied in the critical regime, when fluctuations extend far beyond the length scale of thermal de Broglie waves. Using matter-wave interference we measure the correlation length of these critical fluctuations as a function of temperature. The diverging behavior of the correlation length above the critical temperature is observed, from which we determine the critical exponent of the correlation length for a trapped, weakly interacting Bose gas to be $ν=0.67\pm 0.13$. This measurement has direct implications for the understanding of second order phase transitions.
dc.description4 pages, 3 figures, accepted version; published document available at http://www.quantumoptics.ethz.ch/publications.html
dc.identifierhttps://arxiv.org/abs/0704.1439
dc.identifierhttp://arxiv.org/abs/0704.1439
dc.identifierScience 315, 1556 (2007)
dc.identifierdoi:10.1126/science.1138807
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/139589
dc.subjectStatistical Mechanics
dc.titleCritical Behavior of a Trapped Interacting Bose Gas
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