BEC-BCS crossover in an optical lattice
Statistical Mechanics
2014-11-17 v2
Abstract
We present the microscopic theory for the BEC-BCS crossover of an atomic Fermi gas in an optical lattice, showing that the Feshbach resonance underlying the crossover in principle induces strong multiband effects. Nevertheless, the BEC-BCS crossover itself can be described by a single-band model since it occurs at magnetic fields that are relatively far away from the Feshbach resonance. A criterion is proposed for the latter, which is obeyed by most known Feshbach resonances in ultracold atomic gases.
Cite
@article{arxiv.cond-mat/0604186,
title = {BEC-BCS crossover in an optical lattice},
author = {Arnaud Koetsier and D. B. M. Dickerscheid and H. T. C. Stoof},
journal= {arXiv preprint arXiv:cond-mat/0604186},
year = {2014}
}
Comments
4 pages, 3 figures