Hannover 2013 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 21: Poster: Photoionization

A 21.3: Poster

Dienstag, 19. März 2013, 16:00–18:30, Empore Lichthof

The time-dependent restricted active space Configuration Interaction method for the photoionization of many-electron atoms — David Hochstuhl, •Christopher Hinz, and Michael Bonitz — Institut für Theoretische Physik und Astrophysik, Christian-Albrechts-Universität zu Kiel, Leibnizstr. 15 24098 Kiel, Germany

We present the time-dependent restricted active space Configuration Interaction method, which was introduced in Ref. [1] to solve the time-dependent Schrödinger equation for many-electron atoms, and particularly apply it to the treatment of photoionization processes in atoms. We proof the applicability of the method by calculating the photoionization cross sections of Helium and Beryllium. Further, we consider the time-delay in the photoionization from the 2s and 2p shell of neon [2] and apply a correlated and explicitly time-dependent treatment for its simulation.
[1] D. Hochstuhl, M. Bonitz, Phys. Rev. A 86, 053424 (2012)
[2] Schultze et al., Science, 328, 1658 (2010)