本文提出一种判定用于捕陷中性气态原子激光陷阱稳定性的方法,从理论上证明了双高斯光束陷阱在轴向对中性气态(二能级)原子的捕陷可以是稳定的。讨论了用三组结构相同但互相垂直相交的双高斯光束陷阱构成的三维立体陷阱的稳定性。

In this paper we present a method to judge the stability of laser traps for trapping neutral atoms of gas. Using the method we prove theoretically that the bi-Gaussian light beam trap can be stable in trapping neutral (two-level) atoms of gas along the beam axis. We also discuss the stability of a throe-dimensional spatial trap which is formed by three bi-Gaussian light beam traps with the same structure but perpendicular cross.