Abstract
problem of establishing the genealogy of atomic states in external fields is analyzed by steady-state perturbation theory. The method of diagonalizing the energy matrix through the use of perturbed wave functions reduces to first-order perturbation theory. The intersection and antiintersection of levels in an electric field are discussed.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 4, pp. 62–70, April, 1981.
I wish to thank Z. I. Kuplyauskis for useful comments.
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Demkin, V.P. Genealogy of atomic states in steady-state perturbation theory. Soviet Physics Journal 24, 351–354 (1981). https://doi.org/10.1007/BF00898271
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DOI: https://doi.org/10.1007/BF00898271