Professor of Quantum Physics at Freie Universität Berlin, Fraunhofer HHI and Helmholtz …

Theoretical Physics, DAMTP, University of Cambridge, Ghent University

University of Kaiserslautern-Landau, Dept. of Physics and research center OPTIMAS

Dresden University of Technology (TU Dresden), University of Regensburg

Michigan State University

Helsinki, Marburg, Stockholm, Michigan

ICTP, Trieste, Italy

Associate Professor, Department of Physics and Astronomy, Uppsala University

Otto von Guericke Universität Magdeburg, Professor (emeritus) for Theoretical Physics

Associate Professor of Physics, University of Munich (LMU)