Relativistic Processes in Highly Charged Ions

In this book we investigate strong-field relativistic processes in highly charged ions. In the first part, we study resonance fluorescence of laser-driven highly charged ions. Our ab initio approach based on the Dirac equation allows for investigating highly relativistic ions, and, consequently, provides a sensitive means to test correlated relativistic dynamics, bound-state quantum electrodynamic phenomena and nuclear effects by applying coherent light with x-ray frequencies. Furthermore, we investigate the level structure of heavy hydrogen-like ions in laser beams. Interaction with the light field leads to dynamic shifts of the electronic energy levels, which is relevant for spectroscopic experiments. We apply a fully relativistic description of the electronic states by means of the Dirac equation. We predicted cross section for the inter-shell trielectronic recombination and quadruelectronic recombination processes which have been experimentally confirmed in electron beam ion trap measurements, mainly for C-like ions, of Ar, Fe and Kr.

Autorentext

Octavian Postavaru, born in 1975, received the M.Sc. degree in Theoretical Physics from University of Bucharest in 2007, while working at Institute for Nuclear Physics, Mainz. In 2010, he completed his Ph.D. program at the University of Heidelberg. This work, on which the book is based, was performed at Max Planck Institute for Nuclear Physics.