Stuttgart 2012 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 26: Poster: Atomic systems in external fields

A 26.11: Poster

Mittwoch, 14. März 2012, 16:30–19:00, Poster.V

Temporal dynamics of Coulomb correlations in atomic strong-field processes — •Maximilian Hollstein, Benjamin Baxevanis, and Daniela Pfannkuche — 1. Institut für Theoretische Physik, Universität Hamburg, Hamburg,Germany

The temporal dynamics of Coulomb correlations in atomic strong-field processes are investigated theoretically on a model system.

In order to study atomic strong-field processes various methods have been developed to solve the time-dependent Schrödinger equation as for instance the single-active-electron approach or the time-dependent configuration-interaction singles method. In contrast to these approaches which do not take into account the complete Coulomb correlations we are using a numerically exact method to study the ionization process on a model system. We are focusing on the temporal dynamics of the Coulomb correlations by considering the time evolution of pair correlation functions. By comparing the exact results with Hartree-Fock based methods we are investigating the importance of Coulomb correlations atomic strong-field processes.