Article (Scientific journals)
Superfluidity versus Anderson localization in a dilute Bose gas
Paul, T.; Schlagheck, Peter; Leboeuf, P. et al.
2007In Physical Review Letters, 98 (21)
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Abstract :
[en] 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 and 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.
Disciplines :
Physics
Author, co-author :
Paul, T.
Schlagheck, Peter ;  Université de Liège - ULiège > Département de physique > Physique quantique statistique
Leboeuf, P.
Pavloff, N.
Language :
English
Title :
Superfluidity versus Anderson localization in a dilute Bose gas
Publication date :
2007
Journal title :
Physical Review Letters
ISSN :
0031-9007
eISSN :
1079-7114
Publisher :
American Physical Society, Ridge, United States - New York
Volume :
98
Issue :
21
Peer reviewed :
Peer Reviewed verified by ORBi
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