A Composite Fermion Description of Rotating Bose-Einstein Condensates
Condensed Matter
2009-10-31 v1
Abstract
We study the properties of rotating Bose-Einstein condensates in parabolic traps, with coherence length large compared to the system size. In this limit, it has been shown that unusual groundstates form which cannot be understood within a conventional many-vortex picture. Using comparisons with exact numerical results, we show that these groundstates can be well-described by a model of non-interacting ``composite fermions''. Our work emphasises the similarities between the novel states that appear in rotating Bose-Einstein condensates and incompressible fractional quantum Hall states.
Cite
@article{arxiv.cond-mat/9907498,
title = {A Composite Fermion Description of Rotating Bose-Einstein Condensates},
author = {N. R. Cooper and N. K. Wilkin},
journal= {arXiv preprint arXiv:cond-mat/9907498},
year = {2009}
}
Comments
5 pages, 3 eps-figures, revtex with epsf.tex and multicol.sty