Japanese German Symposium on Geometry and Topology of Quantum Materials
- Date: Oct 8, 2025
- Location: Max Planck Institute for Solid State Research
- Room: 2R04
- Host: Dep. Quantum Many-Body Theory
Join us for an engaging one-day symposium which delves into the recent developments in the fields of quantum geometry, topology, and correlations in quantum materials. Over the last few years, the geometry and topology of quantum materials has received increasing attention, as these are intimately connected to various response functions, including linear and non-linear Hall transport, optical conductivities, higher-harmonic generation, and photovoltaic effects. In correlated materials, quantum geometry can guarantee finite superfluidity and stabilize fractional topological phases.
In this meeting we discuss these topics both from a mathematical and a materials driven point of view, in the context of topological semimetals, magnets, and superconductors. This symposium aims to bring together established and young researchers from Japan and Germany, to facilitate engaging discussions and networking opportunities, fostering new interdisciplinary collaborations.
To participate please register online: Workshop Registration .
The registration deadline is the 28th of September.
Invited Speakers:
Johannes Mitscherling (MPI-PKS Dresden)
Rina Tazai (Yukawa Institute for Theoretical Physics, Kyoto University)
Takahiro Morimoto (University of Tokyo)
Robin Neumann (Martin Luther University Halle-Wittenberg)
Ken Shiozaki (Yukawa Institute for Theoretical Physics, Kyoto University)
Kukka-Emilia Huhtinen (ETH Zürich)
Masatoshi Sato (Yukawa Institute for Theoretical Physics, Kyoto University)
Programme:
09.00 Arrival with coffee
09.30 Opening remarks (W. Metzner, A. Schnyder, R. Wiedmann)
09.40 Johannes Mitscherling -- Introduction to quantum geometry: Berry curvature, quantum metric and beyond
10.40 Coffee break
11.00 Takahiro Morimoto -- Nonlinear responses mediated by magnons in multiferroic materials
11.45 Robin Neumann -- Quantum Geometry and Topology of Magnons
12.30 Lunch break at MPI canteen
14.00 Rina Tazai -- Theoretical study of loop current order
14.45 Kukka-Emilia Huhtinen -- Role of quantum geometry in flat-band supersonductivity and superfluidity
15.30 Coffee break
16.00 Ken Shiozaki -- Equivariant Parameter Family of Many-Body Gapped Systems.
16.45 Masatoshi Sato -- Non-Hermitian aspects of Hermitian topological phases
17.30 Concluding remarks (A. Schnyder, R. Wiedmann)
17.45 Poster session with snacks and beverages (open end)