Atom-molecule theory of broad Feshbach resonances
Statistical Mechanics
2014-10-13 v1
Abstract
We derive the atom-molecule theory for an atomic gas near a broad Feshbach resonance, where the energy dependence of the atom-molecule coupling becomes crucial for understanding experimental results. We show how our many-body theory incorporates the two-atom physics exactly. In particular, we calculate the magnetic moment of a two-component gas of ^{6}Li atoms for a wide range of magnetic fields near the broad Feshbach resonance at about 834 Gauss. We find excellent agreement with the experiment of Jochim et al. [Phys. Rev. Lett. 91, 240402 (2003)].
Cite
@article{arxiv.cond-mat/0409621,
title = {Atom-molecule theory of broad Feshbach resonances},
author = {G. M. Falco and H. T. C. Stoof},
journal= {arXiv preprint arXiv:cond-mat/0409621},
year = {2014}
}
Comments
4 pages, 2 figures