Dissipationless flow and superfluidity in gaseous Bose-Einstein condensates
Soft Condensed Matter
2007-05-23 v1
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.
Cite
@article{arxiv.cond-mat/0008423,
title = {Dissipationless flow and superfluidity in gaseous Bose-Einstein condensates},
author = {C. Raman and R. Onofrio and J. M. Vogels and J. R. Abo-Shaeer and W. Ketterle},
journal= {arXiv preprint arXiv:cond-mat/0008423},
year = {2007}
}
Comments
11 pages, submitted to Journal of Low Temperature Physics