Hannover 2003 – scientific programme
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A: Atomphysik
A 17: Postersitzung 2
A 17.34: Poster
Thursday, March 27, 2003, 16:00–18:30, Poster
Ionization and excitation of the hydrogen atom by an electric field — •Darko Dimitrovski1,2, Tasko P. Grozdanov3, Eugene A. Solovev2, and John S. Briggs1 — 1Theoretische Quantendynamik, Universität Freiburg, Hermann-Herder-Str. 3, D-79104 Freiburg, Germany — 2Macedonian Academy of Sciences and Arts, P.O. Box 428, 1000 Skopje, Macedonia — 3Institute of Physics, P.O. Box 57, 11001 Belgrade, Yugoslavia
We investigate excitation and ionization of a hydrogen atom by an electric pulse of both Gaussian and rectangular shape. The time-dependent Schrödinger equation is solved numerically using the discrete variable representation (DVR). In the regime where the pulse duration corresponds to nearly-adiabatic evolution of the system an estimate of the probability for inelastic processes based on the advanced adiabatic theory is in good agreement with numerical results.