Nonequilibrium Green function approach to photoionization processes in atoms
نویسندگان
چکیده
We present a quantum kinetic approach for the time-resolved description of many-body e ects in photoionization processes in atoms. The method is based on the non-equilibrium Green functions formalism and solves the Keldysh/Kadano -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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تاریخ انتشار 2009