Variational Calculation of Multiphoton Ionization Processes for the H Atom

Bo Gao and Anthony F. Starace
Phys. Rev. Lett. 61, 404 – Published 25 July 1988
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Abstract

Well-known variational principles for second-order perturbation matrix elements are extended to higher-order multiphoton processes for atomic hydrogen. Numerical applications to two- and three-photon ionization of the hydrogen ground state provide results comparable to those of analytic calculations, even near intermedaite-state resonances, yet without the complications involved in summation over intermediate states. Extensions to multiphoton processes for many-electron atoms are discussed briefly.

  • Received 14 April 1988

DOI:https://doi.org/10.1103/PhysRevLett.61.404

©1988 American Physical Society

Authors & Affiliations

Bo Gao and Anthony F. Starace

  • Department of Physics and Astronomy, The University of Nebraska, Lincoln, Nebraska 68588

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Issue

Vol. 61, Iss. 4 — 25 July 1988

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