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arXiv · cond-mat/9909109

Evidence for a critical velocity in a Bose-Einstein condensed gas

C. Raman·M. Kohl·R. Onofrio·D. S. Durfee·C. E. Kuklewicz·Z. Hadzibabic·W. Ketterle
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Abstract

We have studied dissipation in a Bose--Einstein condensed gas by moving a blue detuned laser beam through the condensate at different velocities. Strong heating was observed only above a critical velocity.

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C. Raman, M. Kohl, R. Onofrio, D. S. Durfee, C. E. Kuklewicz, Z. Hadzibabic, W. Ketterle. 1999-09-07. Evidence for a critical velocity in a Bose-Einstein condensed gas. https://doi.org/10.1103/physrevlett.83.2502

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