• Featured in Physics
  • Editors' Suggestion

Spin Drag in Noncondensed Bose Gases

R. A. Duine and H. T. C. Stoof
Phys. Rev. Lett. 103, 170401 – Published 19 October 2009
Physics logo See Viewpoint: Spins in cold atoms—what a drag!

Abstract

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.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 17 July 2009

DOI:https://doi.org/10.1103/PhysRevLett.103.170401

©2009 American Physical Society

Viewpoint

Key Image

Spins in cold atoms—what a drag!

Published 19 October 2009

Interactions among noncondensed bosonic atoms in a trap can cause one species of atoms accelerated by a magnetic field to drag along another species of atoms that would normally not interact with the field.

See more in Physics

Authors & Affiliations

R. A. Duine and H. T. C. Stoof

  • Institute for Theoretical Physics, Utrecht University, Leuvenlaan 4, 3584 CE Utrecht, The Netherlands

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 103, Iss. 17 — 23 October 2009

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×