Autoionizing states of atoms calculated using generalized sturmians

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The generalized Sturmian method is applied to autoionizing states
of atoms and ions. If the Goscinskian basis sets allow for a sufficient
amount of angular correletion, the calculated energies of doubly-excited
(autoionizing) states are found to agree well with the few available
experimental energies. A large-Z approximation is discussed, and simple
formulas are derived which are valid not only for autoionizing states,
but for all states of an isoelectronic atomic series. Diagonalization
of a small block of the interelectron repulsion matrix yields roots
that can be used for a wide range of Z values.
Original languageEnglish
Title of host publicationAdvances in quantum chemistry
EditorsJohn R. Sabin, Errki J. Brändas
Number of pages17
PublisherAcademic Press
Publication date2005
ISBN (Print)978-0-12-034849-7
Publication statusPublished - 2005
SeriesAdvances in Quantum Chemistry

ID: 4078577