Correlated and Topological Quantum Materials

IMPORTANT

Scope

Overview

We are pleased to announce an international workshop jointly organized with researchers from the German Cluster of Excellence ctd.qmat - Complexity, Topology and Dynamics in Quantum Matter. This three-day intensive workshop aims to bring together experts, early-career researchers, and students from diverse fields related to Correlated and Topological Quantum Materials, providing a focused forum to explore cutting-edge topics and recent advances in this rapidly evolving area of research.

The first bilatelal workshop, held in Würzburg, Germany in 2024, was organized by the ctd.qmat (formerly ct.qmat) members. The remarkable success of our initial collaborations has inspired us to host the 2nd workshop in Sapporo, Japan, aiming to drive new research opportunities and to further strengthen the scientific ties between Germany and Japan.

Objectives

International Collaboration

The workshop aims to strengthen collaboration between early-career researchers in Japan and Germany by fostering the exchange of ideas and expertise, and to contribute to the further development of international research activities in quantum science.

Interdisciplinary Exchange

The workshop promotes dialogue and collaboration among researchers from different PRESTO fields, researchers in Japan working on quantum materials, and scientists from abroad, thereby supporting a comprehensive and interdisciplinary understanding of quantum materials.

Frontier Research

The workshop will feature presentations and discussions on recent advances in quantum materials research, with invited talks by promising early-career researchers affiliated with the PRESTO programs and the German Cluster of Excellence ctd.qmat. Active participation from early-career researchers and graduate students is encouraged.

Networking Opportunities

The workshop provides an environment conducive to networking, enabling participants at all career stages to establish valuable connections that may lead to future collaborations.

Invited speakers

Yutaka Akagi (Ochanomizu University, Japan)
From CP^N Multiple-Q States to the Emergence of Majorana Fermions

Jeroen van den Brink (IFW Dresden, Germany)

Ralph Claessen (University of Würzburg, Germany)

Joseph Dufouleur (IFW Dresden, Germany)

Jonas Erhardt (University of Würzburg, Germany)

Yukako Fujishiro (RIKEN, Japan)
Emergent Phases and Functions in Quantum Materials Explored by Ultra-High-Pressure Precision Measurements

Kenichiro Hashimoto (Kyoto University, Japan)
Circularly Polarized Microwaves as a Probe of the BCS–BEC Crossover

Hiroaki Ishizuka (Institute of Science Tokyo, Japan)
Anomalous Hall effect and nonreciprocal transport in chiral magnets

Lukas Janssen (TU Dresden, Germany)

Stefan Kaiser (TU Dresden, Germany)

Tobias Kießling (University of Würzburg, Germany)

Sebastian Klembt (University of Würzburg, Germany)

Hidetoshi Masuda (Tohoku University, Japan)
Magnetic chirality: Control and detection in metallic helimagnets

Hideaki Obuse (Hokkaido University, Japan)
Anomalous high-harmonic generation from the 1D topological edge states and the relation with the Rabi problem

Artem Odobesko (University of Würzburg, Germany)

Ryuichi Ohta (Hokkaido University, Japan)
Photon–Electron–Phonon Interactions in Rare-Earth-Doped Crystals Toward Highly Coherent Hybrid Quantum Systems and Solid-State Laser Cooling

Yoshihiro Okamura (The University of Tokyo, Japan)
Nonlinear optical phenomena in multiferroic altermagnet

Ryutaro Okuma (The University of Tokyo, Japan)
Excitonic Insulator as a Platform for Large, Tunable Anomalous Hall Effect

Shun Okumura (The University of Tokyo, Japan)
Superstructures and dynamics of three-dimensional topological magnetic textures

Tomoki Ozawa (Tohoku University, Japan)
Non-Hermitian quantum geometry

Stephan Rachel (University of Melbourne, Australia)

Takuro Sato (Institute for Molecular Science, Japan)
Chirality: a driving force for nontrivial spin-momentum locking

Aparajita Singha (TU Dresden, Germany)

Kazuaki Takasan (The University of Tokyo, Japan)
Quantum Active Matter: Concepts, Models, and Perspectives

Hideaki Takashima (Chitose institute of science and technology, Japan)
Toward the realization of photonic quantum technologies using defect centers in diamond nanostructures

Shun Uchino (Waseda University, Japan)
Quantum transport under engineered dissipation in ultracold atomic gases

Max Ünzelmann (University of Würzburg, Germany)

Rinsuke Yamada (The University of Tokyo, Japan)
Material exploration of p-wave magnets with commensurate spin helix

Program

TBA

Registration

Registration, including an application for a poster presentation and dinner-discussion forums, opens now. The poster session will be held on 3rd March, 2026.

According to the purpose of this bilateral workshop, only persons affiliated with Japan or Germany are eligible to apply.

Please click here for registration.

Contact

If you have any questions, please send a message to the address: japan-germany-2026@eng.hokudai.ac.jp

Organizers

Kensuke Kobayashi (The University of Tokyo)

Shuichi Murakami (The University of Tokyo)

Hideaki Obuse (Hokkaido University)

Eiji Saito (The University of Tokyo)

Sponsors

This workshop is supported by

Grant-in-Aid for Transformative Research Areas(A) "Chimera Quasiparticle",

Cluster of Excelence ctd.qmat - Complexity, Topology and Dynamics in Quantum Matter,

Marubun Research Promotion Foundation, and

Faculty of Engineering, Hokkaido University.