Spectral representation of the three-body Coulomb problem. I. Nonautoionizing doubly excited states of high angular momentum in helium

Eiglsperger, Johannes;Piraux, Bernard;Madronero, Javier
(2010) Physical review. A, Atomic, molecular, and optical physics — Vol. 81, n° 4 (2010)

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Authors
  • Eiglsperger, JohannesUCLouvain
    Author
  • Piraux, BernardUCLouvain
    Author
  • Madronero, JavierUCLouvain
    Author
Abstract
We investigate high-lying doubly excited nonautoionizing states of helium with total angular momentum L = 1,2, ...,9 with the help of a configuration interaction approach. We provide highly precise nonrelativistic energies of these states and discuss the properties of the wave functions with respect to the particle exchange operator.
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Eiglsperger, J., Piraux, B., & Madronero, J. (2010). Spectral representation of the three-body Coulomb problem. I. Nonautoionizing doubly excited states of high angular momentum in helium. Physical review. A, Atomic, molecular, and optical physics, 81(4). https://doi.org/10.1103/PhysRevA.81.042527 (Original work published 2010)