Research
Our research group develops novel methods to follow ultrafast processes in molecules and solid-state systems by means of attosecond and femtosecond x-ray and XUV pulses employing analysis within quantum electrodynamics. We develop a theoretical and a computational framework to describe how to follow electron, exciton, spin, coupled electron- and exciton-lattice dynamics by means of ultrashort x-ray pulses with (sub-)femtosecond time resolution and sub-nanometer spatial resolution. We consider time- and angle-resolved photoelectron spectroscopy, time- and momentum-resolved RIXS, and energy-resolved Bragg diffraction.