Abstract

The results of three-dimensional numerical simulations of strong-field atomic stabilization with arbitrarily polarized light beyond the electric dipole approximation are presented. The study of the long-term evolution of the ground-state hydrogen atom exposed to an intense high-frequency laser field reveals the persistence of the metastable bound states up to relativistic intensities. The population of these states in a pulsed field is examined as a function of the pulse peak intensity. These calculations resolve recent contradictions in the literature related to the role of magnetic field in the high-frequency stabilization phenomenon.

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