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Regularization of Coulomb potentials in the treatment of nonresonant transitions to an ionizing continuum

1993; American Physical Society; Volume: 47; Issue: 5 Linguagem: Inglês

10.1103/physreva.47.3852

1538-4446

R. M. Dreizler, L. F. Errea, Albert L. Henne, H. J. Lüdde, Antoni Riéra, Patricia Sánchez,

Advanced Physical and Chemical Molecular Interactions

Close-coupling techniques often break down when transitions to a continuum or quasicontinuum cannot be neglected. This work describes an extension of a recently proposed method [L. F. Errea, L. M\'endez, and A. Riera, Chem. Phys. Lett. 164, 261 (1989)] to deal with such situations, when the coupling terms involve Coulomb potentials. A connection with the method of packet states is made, and a preliminary application of the method is presented.