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 laser pulses has been proposed and confirmed in various numerical simulations (e.g. Su et al). A question was then raised by several authors (Chen and Bernstein, Krainov and Preobrazhenskii, and Geltman) concerning the possibility of producing such stabilization in a one-dimensional 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-frequency laser pulse is necessary for such a realization.