Superfluidity versus Anderson localization in a dilute Bose gas

被引：80

作者：

Paul, T. ^{[1
]}

Schlagheck, P.

Leboeuf, P.

Pavloff, N.

机构：

[1] Univ Paris 11, CNRS, UMR 8626, Lab Phys Theoret & Modeles Stat, F-91405 Orsay, France

[2] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.98.210602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：4

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