Hannover 2003 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

A: Atomphysik

A 17: Postersitzung 2

A 17.34: Poster

Donnerstag, 27. März 2003, 16:00–18:30, Poster

Ionization and excitation of the hydrogen atom by an electric field — •Darko Dimitrovski^1,2, 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.