Spin Drag in Noncondensed Bose Gases

被引：22

作者：

Duine, R. A. ^{[1
]}

Stoof, H. T. C. ^{[1
]}

机构：

[1] Univ Utrecht, Inst Theoret Phys, NL-3584 CE Utrecht, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 17期

基金：

欧洲研究理事会;

关键词：

2-DIMENSIONAL ELECTRON-SYSTEMS; COULOMB DRAG; PHASE;

D O I：

10.1103/PhysRevLett.103.170401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show how time-dependent magnetic fields lead to spin motive forces and spin drag in a spinor Bose gas. We propose to observe these effects in a toroidal trap and analyze this particular proposal in some detail. In the linear-response regime we define a transport coefficient that is analogous to the usual drag resistivity in electron bilayer systems. Because of Bose enhancement of atom-atom scattering, this coefficient strongly increases as temperature is lowered. We also investigate the effects of heating.

引用

页数：4

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