Uniform WKB approximation of Coulomb wave functions for arbitrary partial wave

Details Uniform WKB approximation of Coulomb wave functions for arbitrary partial wave Uniform WKB approximation of Coulomb wave functions for arbitrary partial wave

2008-12-12

arxiv.org/abs/0812.2437v1

N. Michel, Europhysics Letters, Vol. 83, (2008), p.10002

Physics

Mathematical Physics

5 pages, 2 figures

Scientific paper

10.1209/0295-5075/83/10002

Coulomb wave functions are difficult to compute numerically for extremely low energies, even with direct numerical integration. Hence, it is more convenient to use asymptotic formulas in this region. It is the object of this paper to derive analytical asymptotic formulas valid for arbitrary energies and partial waves. Moreover, it is possible to extend these formulas for complex values of parameters.

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