Hannover 2013 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 39: Poster: Atomic systems in external fields

A 39.11: Poster

Donnerstag, 21. März 2013, 16:00–18:30, Empore Lichthof

Temporal dynamics in strong-field processes subjected to Coulomb correlations — •Maximilian Hollstein and Daniela Pfannkuche — Jungiusstraße 9, 20355 Hamburg

Common theoretical approaches for studying atomic strong-field processes such as tunnel and multiphoton ionization of atoms or atom-like systems (e.g. quantum dots) rely on an (effective) one-particle description as for example the single-active-electron approach or the time-dependent configuration-interaction singles (TD-CIS) method. Within these methods, Coulomb correlations are usually neglected. In contrast to these approaches we are investigating the temporal dynamics in strong-field processes subjected to Coulomb correlations on a model system by solving the time-dependent Schrödinger Equation numerically. We consider the time evolution of pair-correlation functions and investigate two-particle excitations which are exceeding the configuration-interaction singles approximation.