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arXiv:cond-mat/9909109 · Physical Review Letters

Evidence for a Critical Velocity in a Bose-Einstein Condensed Gas

Chandra Raman, Michael Köhl, Roberto Onofrio, Dallin Durfee, Chris Kuklewicz, Zoran Hadzibabic, Wolfgang Ketterle

Published Sep 27, 1999• 535 citations
arXivHTMLPDF

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.
DOI
10.1103/physrevlett.83.2502

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