Liquid-Gas phase transition in Bose-Einstein Condensates with time evolution
软凝聚态物质
2009-10-31 v1
摘要
We study the effects of a repulsive three-body interaction on a system of trapped ultra-cold atoms in Bose-Einstein condensed state. The stationary solutions of the corresponding wave non-linear Schr\"{o}dinger equation suggest a scenario of first-order liquid-gas phase transition in the condensed state up to a critical strength of the effective three-body force. The time evolution of the condensate with feeding process and three-body recombination losses has a new characteristic pattern. Also, the decay time of the dense (liquid) phase is longer than expected due to strong oscillations of the mean-square-radius.
引用
@article{arxiv.cond-mat/9909345,
title = {Liquid-Gas phase transition in Bose-Einstein Condensates with time evolution},
author = {A. Gammal and T. Frederico and Lauro Tomio and Ph. Chomaz},
journal= {arXiv preprint arXiv:cond-mat/9909345},
year = {2009}
}
备注
4 eps-figures