Combination of the Perturbation Theory with Configuration Interaction Method

Abstract

Present atomic theory provides accurate and reliable results for atoms with a small number of valence electrons. However, most current methods of calculations fail when the number of valence electrons exceeds four or five. This means that we can not make reliable predictions for more than a half of the periodic table. Here we suggest a modification of the CI+MBPT (configuration interaction plus many-body perturbation theory) method, which may be applicable to atoms and ions with filling d and f shells.

arXiv comment11 pages, 6 figures, submitted to PRA

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Cited by in corpus (3)

• Probing new bosons and nuclear structure with ytterbium isotope shifts
• pCI: a parallel configuration interaction software package for high-precision atomic structure calculations
• Comparison of theory and experiment for radiative characteristics in neutral thulium