超冷气体中的 Feshbach 共振
量子气体
2017-08-23 v1
摘要
在本章中,我们一般性地描述了散射共振现象,并重点介绍需要多通道处理的 Feshbach 共振机制。我们推导了散射相移对磁场和碰撞能量的依赖关系。由此可以提取出散射长度和有效范围系数,这些表达式对于超冷气体尤为有用。
引用
@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}
}
备注
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