Free-fall expansion of finite-temperature Bose-Einstein condensed gas in the non Thomas-Fermi regime

Abstract

We report on our study of the free-fall expansion of a finite-temperature Bose-Einstein condensed cloud of 87Rb. The experiments are performed with a variable total number of atoms while keeping constant the number of atoms in the condensate. The results provide evidence that the BEC dynamics depends on the interaction with thermal fraction. In particular, they provide experimental evidence that thermal cloud compresses the condensate.

arXiv comment8 pages, 4 figures

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Cited by in corpus (7)

• On the anomalous density for Bose gases at finite temperature
• Analysis and calibration of absorptive images of Bose-Einstein condensate at non-zero temperatures
• Finite-Temperature Density-Functional Theory of Bose-Einstein Condensates
• Metastable Bose-Einstein Condensation in a Strongly Correlated Optical Lattice
• Free expansion of a Bose-Einstein condensate at the presence of a thermal cloud
• Finite temperature expansion dynamics of Bose-Einstein condensates
• Cloud parameter estimation for interacting BEC after time-of-flight