Research Areas Accelerator Science Bio & Medical Physics Chemical Dynamics Condensed Matter Physics & Nanoscience Molecular Imaging Spectroscopy Strong Field Physics Theory Ultrafast Optics Research Groups Theory CFEL-DESY Theory Group Robin Santra many-body theory and quantum electrodynamics molecular dynamics and Monte Carlo methods development and implementation of computational techniques CFEL-MPSD Theory Group Angel Rubio modeling non-equilibrium phenomena and new states of matter theoretical spectroscopy: time resolved spectroscopies time-dependent-functional theory and quantum-electrodynamics Computational Nanoscale Imaging Kartik Ayyer algorithm development to recover unknown degrees of freedom with sparse X-ray diffraction data machine learning for diffractive image classification from XFELs Computational Science Fangohr, Hans Software Engineering for Research Reproducibility High Performance Computing Theory of Pump-Probe Spectroscopy Group Michael Sentef ultrafast dynamics of condensed matter laser-driven superconductivity and ordered state dynamics light-induced Floquet states of matter Theory of ultrafast processes with X-ray light Nina Rohringer high-harmonic spectroscopy nonlinear spectroscopy with FEL's electronic structure at high X-ray intensity Theory of ultrafast light-matter interaction Daria Gorelova interaction of ultrashort light pulses with molecules and condensed matter imaging ultrafast processes with attosecond x-rays methods to follow exciton dynamics on (sub-)femtosecond time scale X-ray Irradiated Materials: Theory and Computation Beata Ziaja-Motyka large-scale and long-time computational studies of X-ray irradiated materials development of dedicated software tools