The two Coulomb centres problem at large centre separation

I. V. Komarov, S. Yu Slavyanov

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The case of large centre separation R in the two Coulomb centres problem is treated with the help of a comparison method. A multipole expansion for the energy in reciprocal powers of R is obtained up to O(R-5). Particular attention is paid to quasi-crossings of the energy curves. Their position and the splitting of the curves is found. It is shown that these quasi-crossings correspond to a Coulomb series for a charge equal to the difference between the charges of the centres.

Original languageEnglish
Article number309
Pages (from-to)1066-1072
Number of pages7
JournalJournal of Physics B: Atomic and Molecular Physics
Issue number6
StatePublished - 1 Dec 1968

Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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