INTENSE-FIELD STABILIZATION AND THE RANGE OF THE POTENTIAL

Classical intense-field stabilization (IFS), or suppression of photoio nization, is investigated in three dimensions for various potentials. It is shown numerically that IFS exists only for long-range potentials under very general conditions. We show that this observation can be r elated to the quantum-mechanical interpretation of IFS in which Raman transitions via the continuum form a coherent superposition of a subse t of the infinite set of eigenstates provided by a long-range potentia l.