Ultracold Bose gases in 1D disorder:: From Lifshits glass to Bose-Einstein condensate

被引：123
|
作者：
Lugan, P.
Clement, D.
Bouyer, P.
Aspect, A.
Lewenstein, M.
Sanchez-Palencia, L.
机构：
[1] CNRS, Lab Charles Fabry, Inst Opt, F-91127 Palaiseau, France
[2] Univ Paris Sud, F-91127 Palaiseau, France
[3] ICREA, E-08860 Barcelona, Spain
[4] ICFO, Inst Ciencies Foton, E-08860 Barcelona, Spain
来源：
PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 17期
关键词：
D O I：
10.1103/PhysRevLett.98.170403
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study an ultracold Bose gas in the presence of 1D disorder for repulsive interatomic interactions varying from zero to the Thomas-Fermi regime. We show that for weak interactions the Bose gas populates a finite number of localized single-particle Lifshits states, while for strong interactions a delocalized disordered Bose-Einstein condensate is formed. We discuss the schematic quantum-state diagram and derive the equations of state for various regimes.
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页数：4
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