Spontaneous dissociation of long-range Feshbach molecules
Other Condensed Matter
2007-05-23 v2
Abstract
We study the spontaneous dissociation of diatomic molecules produced in cold atomic gases via magnetically tunable Feshbach resonances. We provide a universal formula for the lifetime of these molecules that relates their decay to the scattering length and the loss rate constant for inelastic spin relaxation. Our universal treatment as well as our exact coupled channels calculations for Rb dimers predict a suppression of the decay over several orders of magnitude when the scattering length is increased. Our predictions are in good agreement with recent measurements of the lifetime of Rb.
Keywords
Cite
@article{arxiv.cond-mat/0408387,
title = {Spontaneous dissociation of long-range Feshbach molecules},
author = {Thorsten Koehler and Eite Tiesinga and Paul S. Julienne},
journal= {arXiv preprint arXiv:cond-mat/0408387},
year = {2007}
}
Comments
4 pages, 2 figures (final version)