Fermi Gases in Slowly Rotating Traps: Superfluid vs Collisional Hydrodynamics
Soft Condensed Matter
2009-11-10 v1
Abstract
The dynamic behavior of a Fermi gas confined in a deformed trap rotating at low angular velocity is investigated in the framework of hydrodynamic theory. The differences exhibited by a normal gas in the collisional regime and a superfluid are discussed. Special emphasis is given to the collective oscillations excited when the deformation of the rotating trap is suddenly removed or when the rotation is suddenly stopped. The presence of vorticity in the normal phase is shown to give rise to precession and beating phenomena which are absent in the superfluid phase.
Keywords
Cite
@article{arxiv.cond-mat/0305268,
title = {Fermi Gases in Slowly Rotating Traps: Superfluid vs Collisional Hydrodynamics},
author = {Marco Cozzini and Sandro Stringari},
journal= {arXiv preprint arXiv:cond-mat/0305268},
year = {2009}
}
Comments
4 pages, 2 figures