On Tuesday, 23 May 2023, our lab hosted Paul Wiegmann, a Distinguished Service Professor in the Department of Physics at the University of Chicago, James Franck Institute and Enrico Fermi Institute.
Wiegmann is known for pioneering contributions to the field of quantum integrable systems. He found exact solutions of O(3) Non-linear Sigma Model, (Wiegmann 1985), Wess–Zumino–Witten model (together with Alexander Polyakov), Anderson impurity model and Kondo model.

We had the pleasure to discuss various topics with Prof. Wiegmann during his visit and a joint lunch.