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arXiv · 0902.0768

Nonequilibrium Green function approach to photoionization processes in atoms

D. Hochstuhl·K. Balzer·S. Bauch·M. Bonitz
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Abstract

We present a quantum kinetic approach for the time-resolved description of many-body effects in photoionization processes in atoms. The method is based on the non-equilibrium Green functions formalism and solves the Keldysh/Kadanoff-Baym equations in second Born approximation. An approximation scheme is introduced and discussed, which provides a complete single-particle description of the continuum, while the atom is treated fully correlated.

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D. Hochstuhl, K. Balzer, S. Bauch, M. Bonitz. 2009-02-04. Nonequilibrium Green function approach to photoionization processes in atoms. https://doi.org/10.1016/j.physe.2009.06.044

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