STABILIZATION OF A ONE-DIMENSIONAL SHORT-RANGE MODEL ATOM IN INTENSE LASER FIELDS

The stabilization of atoms in the presence of very intense and short l aser pulses has been proposed and confirmed in various numerical simul ations (e.g. Su et al). A question was then raised by several authors (Chen and Bernstein, Krainov and Preobrazhenskii, and Geltman) concern ing the possibility of producing such stabilization in a one-dimension al model atom with zero range of electron-nucleus interaction. In this paper we report evidence of stabilization through the suppression of ionization for such a model atom. We find that the use of a high-frequ ency laser pulse is necessary for such a realization.