Critical frequency for vortex nucleation in Bose-Fermi mixtures in optical lattices
Other Condensed Matter
2007-05-23 v1
Abstract
We investigate within mean-field theory the influence of a one-dimensional optical lattice and of trapped degenerate fermions on the critical rotational frequency for vortex line creation in a Bose-Einstein condensate. We consider laser intensities of the lattice such that quantum coherence across the condensate is ensured. We find a sizable decrease of the thermodynamic critical frequency for vortex nucleation with increasing applied laser strength and suggest suitable parameters for experimental observation. Since 87Rb-40K mixtures may undergo collapse, we analyze the related question of how the optical lattice affects the mechanical stability of the system.
Keywords
Cite
@article{arxiv.cond-mat/0511160,
title = {Critical frequency for vortex nucleation in Bose-Fermi mixtures in optical lattices},
author = {M. Guilleumas and M. Centelles and M. Barranco and R. Mayol and M. Pi},
journal= {arXiv preprint arXiv:cond-mat/0511160},
year = {2007}
}
Comments
5 pages, 4 figures, revtex4