【摘要】 本文（1）扼要地回顾了BEC研究的历史；（2）着重介绍了用激光冷却和捕陷技术实现碱金属原子BEC的实验；（3）结合我们的工作综述了对BEC的性质，特别是光学性质的理论研究状况。更多还原

【Abstract】 In the present article, (1) the history of BEC research is reviewed briefly, (2) the experiments for creating BEC in alkali atoms are described in detail, and (3) a survey of the researches on some properties of the BEC is made, in particular its optical properties.Our work is also presented briefly.更多还原