Title: Analytical total photo cross section for atoms
Abstract: A quantum-classical approximation for the total photo cross section of many-electron atoms is derived in a time-dependent formulation. Exact commutator relations for the time-dependent dipole operator and a classical approximation for the propagator are used. Analytical expressions are derived for one- and two-electron atoms. We compare the results for hydrogen with the exact cross section and the high-energy approximation. For helium we show a comparison with experimental data and accurate numerical results.
Publication Year: 1995
Publication Date: 1995-10-14
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 41
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