Department of Physics and Astronomy: Publications and Other Research
Date of this Version
April 1990
Abstract
Methods for applying the variationally stable procedure for N th-order perturbative transition matrix elements of Gao and Starace [Phys. Rev. Lett. 61, 404 (1988); Phys. Rev. A 39, 4550 (1989)] to multiphoton processes involving systems other than atomic H are presented. Three specific cases are discussed: one-electron ions or atoms in which the electron-ion interaction is described by a central potential; two-electron ions or atoms in which the electronic states are described by the adiabatic hyperspherical representation; and closed-shell ions or atoms in which the electronic states are described by the multiconfiguration Hartree-Fock representation. Applications are made to the dynamic polarizability of He and the twophoton ionization cross section of Ar.
Comments
Published in Journal of the Optical Society of America B, Vol. 7, Iss. 4 (April 1990), pp. 622-630. Copyright © 1990 Optical Society of America. Used by permission. http://www.opticsinfobase.org/viewmedia.cfm?id=5697&seq=0