Phase diagrams of two-dimensional and three-dimensional disordered Bose gases in the local density approximation

被引：8

作者：

Bourdel, Thomas ^{[1
]}

机构：

[1] Univ Paris 11, CNRS, Inst Opt, Lab Charles Fabry,UMR 8501, F-91127 Palaiseau, France

来源：

PHYSICAL REVIEW A | 2012年 / 86卷 / 06期

关键词：

INSULATOR TRANSITION; PERCOLATION;

D O I：

10.1103/PhysRevA.86.063626

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study superfluid transitions in bidimensional (2D) and tridimensional (3D) disordered and interacting Bose gases. We work in the limit of long-range correlated disorder such that it can be treated in the local density approximation. We present superfluid transition curves in both the disorder-temperature plane and the disorder-entropy plane in 2D and 3D Bose gases. Surprisingly, we find that a small amount of disorder is always favorable to the apparition of a superfluid. Our results offer a quantitative comparison with recent experiments in 2D disordered ultracold gases, for which no exact theory exists. DOI:10.1103/PhysRevA.86.063626

引用

页数：6

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