I mainly work with models and effective theories, that provide accurate predictions for various phenomena in solid state physics. Problems involving interactions are notoriously difficult to handle in quantum mechanics - numerically as well as analytically - however, accurate results can often be obtained within mean field theory or perturbation theory. In particular, I am using density functional theory and its extensions, which are implementet in the software package  GPAW, to which I am an active developer

I am particularly interested in

• New functionals for total energy calculations
• Excitons and screening in two-dimensional materials
• Spin-orbit coupling
• Dzyaloshinskii-Moriya interactions and chiral magnetism
• Chern-Simons coupling and topological insulators