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Avalanches in a Bose-Einstein condensate

J. Schuster·A. Marte·S. Amtage·B. Sang·G. Rempe·H. C. W. Beijerinck
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Abstract

Collisional avalanches are identified to be responsible for an 8-fold increase of the initial loss rate of a large 87-Rb condensate. We show that the collisional opacity of an ultra-cold gas exhibits a critical value. When exceeded, losses due to inelastic collisions are substantially enhanced. Under these circumstances, reaching the hydrodynamic regime in conventional BEC experiments is highly questionable.

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J. Schuster, A. Marte, S. Amtage, B. Sang, G. Rempe, H. C. W. Beijerinck. 2003-05-09. Avalanches in a Bose-Einstein condensate. https://doi.org/10.1103/physrevlett.87.170404

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