Feshbach resonances in ultracold gases
Quantum Gases
2017-08-23 v1
Abstract
In this chapter, we describe scattering resonance phenomena in general, and focus on the mechanism of Feshbach resonances, for which a multi-channel treatment is required. We derive the dependence of the scattering phase shift on magnetic field and collision energy. From this, the scattering length and effective range coefficient can be extracted, expressions which are particularly useful for ultracold gases.
Keywords
Cite
@article{arxiv.1401.2945,
title = {Feshbach resonances in ultracold gases},
author = {S. J. J. M. F. Kokkelmans},
journal= {arXiv preprint arXiv:1401.2945},
year = {2017}
}
Comments
23 pages, 3 figures. This article will be published as Chapter 4 in "Quantum gas experiments - exploring many-body states", edited by P. T\"orm\"a and K. Sengstock, Imperial College Press, London, to be published 2014