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Hanbury Brown Twiss effect for ultracold quantum gases

M. Schellekens·R. Hoppeler·A. Perrin·J. Viana Gomes·D. Boiron·A. Aspect·C. I. Westbrook
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Abstract

We have studied 2-body correlations of atoms in an expanding cloud above and below the Bose-Einstein condensation threshold. The observed correlation function for a thermal cloud shows a bunching behavior, while the correlation is flat for a coherent sample. These quantum correlations are the atomic analogue of the Hanbury Brown Twiss effect. We observe the effect in three dimensions and study its dependence on cloud size.

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M. Schellekens, R. Hoppeler, A. Perrin, J. Viana Gomes, D. Boiron, A. Aspect, C. I. Westbrook. 2006-09-05. Hanbury Brown Twiss effect for ultracold quantum gases. https://doi.org/10.1126/science.1118024

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