Trapped one-dimensional Bose gas as a Luttinger liquid

被引：50

作者：

Monien, H ^{[1
]}

Linn, M ^{[1
]}

Elstner, N ^{[1
]}

机构：

[1] Univ Bonn, Inst Phys, D-53115 Bonn, Germany

来源：

PHYSICAL REVIEW A | 1998年 / 58卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.58.R3395

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The low-energy fluctuations of a trapped, interacting quasi-one-dimensional Bose gas are studied. Our considerations apply to experiments with highly anisotropic traps. We show that under suitable experimental conditions the system can be described as a Luttinger liquid. This implies that the correlation function of the bosons decays algebraically, preventing Bose-Einstein condensation. At significantly lower temperatures a finite-size gap destroys the Luttinger liquid picture and Bose-Einstein condensation is again possible. [S1050-2947(98)50711-1].

引用

页码：R3395 / R3398

页数：4