Abstract
We study dissipation in a dilute Bose gas induced by the motion of a macroscopic object. A blue-detuned laser beam focused on the center of a trapped gas of sodium atoms was scanned both above and below the BEC transition temperature. The measurements allow for a comparison between the heating rates for the superfluid and normal gas.
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Raman, C., Onofrio, R., Vogels, J.M. et al. Dissipationless Flow and Superfluidity in Gaseous Bose-Einstein Condensates. Journal of Low Temperature Physics 122, 99–116 (2001). https://doi.org/10.1023/A:1004864820016
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DOI: https://doi.org/10.1023/A:1004864820016