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. 2005 Oct 28;310(5748):648-51.
doi: 10.1126/science.1118024. Epub 2005 Sep 15.

Hanbury Brown Twiss effect for ultracold quantum gases

M Schellekens  1 , R Hoppeler, A Perrin, J Viana Gomes, D Boiron, A Aspect, C I Westbrook
Affiliations

Hanbury Brown Twiss effect for ultracold quantum gases

M Schellekens et al. Science. .

Abstract

We have studied two-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, whereas the correlation is flat for a coherent sample. These quantum correlations are the atomic analog of the Hanbury Brown Twiss effect. We observed the effect in three dimensions and studied its dependence on cloud size.

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