High-light-intensity photoassociation in a Bose-Einstein condensate

作     者：Thomas Gasenzer 

作者机构：Institut für Theoretische Physik Universität Heidelberg Philosophenweg 16 69120 Heidelberg Germany 

出 版 物：《Physical Review A》 (物理学评论A辑：原子、分子和光学物理学)

年 卷 期：2004年第70卷第2期

页      面：021603(R)-021603(R)页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Deutsche Forschungsgemeinschaft  DFG 

主　　题：COLLISIONS COLD 

摘      要：We investigate theoretically the molecular yield in photoassociation of Bose-Einstein condensed sodium atoms for light intensities of the order of and above those applied in a recent experiment. Our results show that the rate at which ground-state molecules may be formed saturates at high light intensities whereas the loss rate of condensate atoms does not. This is caused by the opposing roles of the short- and long-range pair correlations present near resonance under the influence of the laser and is crucial for the development of efficient photoassociation procedures in a condensate.