Johann Kroha is a Professor for Theoretical Physics at the Physical Institute of the University of Bonn, Germany. He received his Dr. rer. nat. degree in 1993 from the University of Karlsruhe. After extended research periods at Cornell University as an Alexander-von-Humboldt fellow, and at the University of Karlsruhe, he joined the faculty of the University of Bonn in 2002. In 2006, he was elected member of the Supervisory Council of the German Physical Society. His research interests range from strong correlations, especially Kondo physics, in quantum dot, quantum impurity, and lattice many-body systems, to the effects of disorder in electronic and photonic systems and ultracold atomic gases. In particular, he investigates, together with his group, the dynamics of these systems far from equilibrium.