原子激光器已经问世，而此前很长时间人们就一直想拥有它。假若你是所居街坊中的物理学家，邻居可能常向你征求权威性意见，甚至询问原子激光器是什么。如果你无暇跟踪最近的文献，本文即是一篇小小的导读，可能对你有所帮助。解释原子激光的第一步是给“激光”下定义。假... Atomic lasers have come out, and people have been trying to own it for a long time. If you are a physicist in your neighborhood, neighbors may often ask for definitive advice, or even ask about atomic lasers. If you do not have time to track recent literature, this article is a small introduction that may be of use to you. The first step in explaining atomic lasers is to define “lasers.” false...