AP-Seminar: Light-matter interaction in the relativistic domain: Recent theoretical advances

In my presentation, an overview of recent theoretical investigations of the basic radiative processes involving highly-charged, heavy ions will be given. In particular, I will discuss the fully-relativistic treatment of the electron and positron bremsstrahlung and will present new results on the polarization correlations between incident leptons and emitted x-rays. Furthermore, special attention will be paid to the theoretical analysis of the double photoionization of helium-like ions; the process which plays an important role for the understanding of the radiative double electron capture (RDEC). Finally, the subsequent radiative capture of electrons from two (spatially separated) targets will be discussed as the process to emulate the production and diagnostics of polarized heavy ion beams in storage rings. Work is supported by the Helmholtz Association and GSI under the project VH-NG-421.