Japanese–German Symposium on the Geometry and Topology of Quantum Materials

On October 8, 2025, the Department of Quantum Many-Body Theory at the Max Planck Institute for Solid State Research hosted the Japanese–German Symposium on Geometry and Topology of Quantum Materials. Around 70 participants from Stuttgart and other institutions joined the one-day meeting to explore recent developments in quantum geometry, topology, and their connection to correlated materials.

The symposium featured seven invited talks covering topics from Berry curvature and quantum metrics to nonlinear responses, flat-band superconductivity, and non-Hermitian topological phases. Speakers included Johannes Mitscherling, Takahiro Morimoto, Robin Neumann, Rina Tazai, Kukka-Emilia Huhtinen, Ken Shiozaki, and Masatoshi Sato.

Lively discussions and questions throughout the sessions highlighted the growing excitement around how geometric and topological concepts can shape electronic and magnetic behavior in modern materials. A poster session in the evening gave young researchers an opportunity to present their work and exchange ideas in an informal setting.

The event successfully brought together scientists from Japan and Germany, promoting dialogue across condensed matter physics, mathematics, and materials science.
The Institute thanks Andreas Schnyder and Raymond Wiedmann for the excellent organization of this inspiring day.