Physics – Atomic Physics
Scientific paper
Mar 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jphb...13.1025l&link_type=abstract
Journal of Physics B - Atomic and Molecular Physics, vol. 13, Mar. 28, 1980, p. 1025-1036.
Physics
Atomic Physics
14
Atomic Energy Levels, Atomic Structure, Perturbation Theory, Angular Momentum, Approximation, Atomic Physics, Quantum Numbers
Scientific paper
Classical first-order perturbation theory is applied to a two-electron atom. Semiclassical quantisation is used to obtain analytical first-order perturbation formulae for planetary atoms with two excited electrons. In the development of the theory, concepts suggested by the analogous quantal theory are employed. Numerical results are remarkably close to those of quantal first-order perturbation calculations even for low-lying states. For planetary atoms, with more than one Rydberg electron, the semiclassical calculations are much simpler. The results suggest that more precise semiclassical calculations would provide reliable estimates of energy levels of planetary atoms.
Leopold J. G.
percival i. c.
Tworkowski A. S.
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