Superfluidity versus Anderson localization in a dilute Bose gas
Other Condensed Matter
2009-11-13 v2
Abstract
We consider the motion of a quasi one dimensional beam of Bose-Einstein condensed particles in a disordered region of finite extent. Interaction effects lead to the appearance of two distinct regions of stationary flow. One is subsonic and corresponds to superfluid motion. The other one is supersonic, dissipative and shows Anderson localization. We compute analytically the interaction-dependent localization length. We also explain the disappearance of the supersonic stationary flow for large disordered samples.
Keywords
Cite
@article{arxiv.cond-mat/0702591,
title = {Superfluidity versus Anderson localization in a dilute Bose gas},
author = {T. Paul and P. Schlagheck and P. Leboeuf and N. Pavloff},
journal= {arXiv preprint arXiv:cond-mat/0702591},
year = {2009}
}
Comments
4 pages, 3 figures, final published version