The European Physical Journal D

, Volume 65, Issue 1–2, pp 219–222 | Cite as

Dipolar drag in bilayer harmonically trapped gases

Regular Article Ultracold atoms in confined geometries

Abstract

We consider two separated pancake-shaped trapped gases interacting with a dipolar (either magnetic or electric) force. We study how the center of mass motion propagates from one cloud to the other as a consequence of the long-range nature of the interaction. The corresponding dynamics is fixed by the frequency difference between the in-phase and the out-of-phase center of mass modes of the two clouds, whose dependence on the dipolar interaction strength and the cloud separation is explicitly investigated. We discuss Fermi gases in the degenerate as well as in the classical limit and comment on the case of Bose-Einstein condensed gases.

Keywords

87Rb Coulomb Drag Slosh Mode Drag Experiment Dipolar Interaction Strength 

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.Dipartimento di FisicaUniversità di Trento and INO-CNR BEC CenterPovoItaly

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