Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...371..418m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 371, April 10, 1991, p. 418-421.
Astronomy and Astrophysics
Astrophysics
9
Electric Dipoles, Electron Transitions, Hydrogen, Laguerre Functions, Polynomials, Quantum Numbers, Balmer Series, Coulomb Potential, Hypergeometric Functions, Oscillator Strengths, Quantum Mechanics, Wave Functions
Scientific paper
Radial matrix integrals for the dipole approximation are calculated by employing a transformation of variables due to Schroedinger and an expansion theorem for the associated Laguerre polynomials. The resulting formulas involve a single sum in which the expansion parameter is already inverted. The formulas are suitable for machine calculations for transitions between neighboring states characterized by large values of the principal quantum numbers. It is pointed out that systems such as an electron-proton system interacting via the temperature-modified Coulomb potential can benefit from this technique.
Malik G. P.
Malik Usha
Varma Vijaya S.
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