Three-body recombination into deep bound states in a Bose gas with large scattering length
Condensed Matter
2009-11-07 v2 High Energy Physics - Phenomenology
Nuclear Theory
Abstract
An effective field theory for the three-body system with large scattering length a is applied to three-body recombination into deep bound states in a Bose gas. The recombination constant \alpha is calculated to first order in the short-distance interactions that allow the recombination. For a < 0, the dimensionless combination m \alpha/(\hbar a^4) is a periodic function of \ln |a| that exhibits resonances at values of a that differ by multiplicative factors of 22.7. This dramatic behavior should be observable near a Feshbach resonance when a becomes large and negative.
Keywords
Cite
@article{arxiv.cond-mat/0103331,
title = {Three-body recombination into deep bound states in a Bose gas with large scattering length},
author = {Eric Braaten and H. -W. Hammer},
journal= {arXiv preprint arXiv:cond-mat/0103331},
year = {2009}
}
Comments
8 pages, RevTex, 3 postscript figures, uses epsf.tex, discussion improved, assumptions about width of Efimov states clarified