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Critical temperature of a trapped, weakly interacting Bose gas.

Authors
Type
Published Article
Journal
Physical Review Letters
0031-9007
Publisher
American Physical Society
Publication Date
Volume
92
Issue
3
Pages
30405–30405
Identifiers
PMID: 14753855
Source
Medline

Abstract

We report on measurements of the critical temperature of a harmonically trapped, weakly interacting Bose gas as a function of atom number. Our results exclude ideal-gas behavior by more than two standard deviations, and agree quantitatively with mean-field theory. At our level of sensitivity, we find no additional shift due to critical fluctuations. In the course of this measurement, the onset of hydrodynamic expansion in the thermal component has been observed. Our thermometry method takes this feature into account.

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