Congratulations to Dr. Matthias Walther
On 09.12. we had the great PhD defense of Matthias Walther under the supervision of Kai Phillip Schmidt. His thesis is entitled „Effective models for interacting Spin waves in two-dimensional quantum antiferromagnets“. In particular, he developed non-perturbative continuous similarity transformations to calculate physical properties of magnons in low-dimensional quantum magnets. The work is a close collaboration with Dag-Björn Hering and Götz Uhrig from TU Dortmund.