Advances in THz technology allow non-linear excitations of the Higgs amplitude mode in superconductors. This mode, the coherent oscillation of the superconducting order parameter, reveals unprecedented insight into the dynamics of superconducting condensates.

The interplay of correlations that leads to electronic order in the Mott transition or Charge Density Wave state is one of the key challenges in correlated electron systems. It gives rise to a large variety of different ground states ranging from highly unconventional (“bad”) metals to charge density wave states or superconductivity.

Ultrafast Control and Spectroscopy of Complex Quantum Materials We apply advanced nonlinear optical methods such as ultra-broad band pump-probe spectroscopy to investigate and control ultrafast dynamics in complex solid-state materials. The search for new functionalized materials is highly desired for technological progress allowing for novel applications.