On the classification of the doubly excited states of the two-electron atom
S I Nikitin; V N Ostrovsky; S I Nikitin; Inst. of Phys., Leningrad State Univ., Leningrad, USSR; V N Ostrovsky; Inst. of Phys., Leningrad State Univ., Leningrad, USSR
Журнал:
Journal of Physics B: Atomic and Molecular Physics
Дата:
1976-12-21
Аннотация:
Group-theoretical schemes of classification of the doubly excited states of the two-electron atom are based on the theory of addition of four angular momenta. A new scheme of classification of states with high total orbital momentum is proposed for the case when one electron is excited much more than another. The group-theoretical state vectors are compared with the results of the qualitative and numerical study of configuration interaction. Exceptions to the proposed classification scheme are discussed.
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