Dynamics, Fluctuations, and Entanglement in Quantum Materials and Many-Body Systems
Abstract
This three-day focused workshop aims to promote the exchange of ideas among researchers working on quantum materials and many-body systems. The scientific scope includes, but is not limited to, quantum dynamics and fluctuations, entanglement, quantum state tomography, frustration effects, exotic ordered phases, and related topics.
The workshop is primarily theoretical in focus, while remaining closely connected to ongoing experimental developments. It is designed to be discussion-oriented, with ample time for in-depth exchanges among participants. The program will feature early- to mid-career researchers, complemented by a few senior speakers who can provide broader perspectives. By bringing together researchers across quantum many-body theory and related areas, the workshop aims to generate new theoretical insights and to stimulate fruitful collaborations.
Tentative Program
Updated 3 August 2026 · Arrival: 13 October · Workshop: 14–16 October · Departure: 17 October
Wednesday, 14 October 2026 Day 1 · 09:00–17:00
| Time |
Speaker |
Talk title |
| 09:00–09:15 |
Opening |
| 09:15–10:30(1h15m) |
Yukitoshi Motome
University of Tokyo
Theory |
Kitaev spin liquids: from basic concepts to material realizations |
| 10:30–11:00 |
Coffee break |
| 11:00–12:00(1h) |
Rico Pohle
Shizuoka University
Theory |
Electron-phonon-coupled Langevin dynamics for strongly-correlated insulators |
| 12:00–13:30 |
Lunch & discussion |
| 13:30–14:00(30m) |
Sungkyun Choi
IBS
Experiment |
Neutron and X-ray studies on a highly frustrated pyrochlore ruthenate |
| 14:00–15:00(1h) |
Yasuhiro Shimizu
Shizuoka University
Experiment |
Nuclear spin dynamics on quantum-entangled spin systems |
| 15:00–15:30 |
Coffee break |
| 15:30–16:00(30m) |
Moyu Kato
University of Tokyo
Experiment |
Zero-field magnetic ground state and one-third magnetization plateau in a quantum kagome antiferromagnet |
| 16:00–17:00(1h) |
SungBin Lee
KAIST
Theory |
Emergent vestigial order via quantum–entropic competition in the triangular supersolid magnet |
Thursday, 15 October 2026 Day 2 · 09:00–17:00
| Time |
Speaker |
Talk title |
| 09:00–09:30(30m) |
Daiki Sasamoto
Tohoku University
Theory |
Spin dynamics beyond parton mean-field theory: perturbative approaches with fermionic and bosonic partons |
| 09:30–10:30(1h) |
Joji Nasu
Tohoku University
Theory |
Thermal and spin transport by magnons in insulating magnets |
| 10:30–11:00 |
Coffee break |
| 11:00–12:00(1h) |
Yi-Ping Huang
NTHU
Theory |
Exact organization of density matrices and entanglement structure in the Kitaev spin liquid |
| 12:00–13:30 |
Lunch & discussion |
| 13:30–14:00(30m) |
Yejun Feng
OIST
Experiment |
A materials science approach to spin glass |
| 14:00–14:30(30m) |
Markus Drescher
OIST
Theory |
Dynamical signatures of emergent quantum phases of the triangular-lattice Heisenberg antiferromagnet |
| 14:30–15:00(30m) |
Ren-Bo Wang
OIST
Theory |
Triplon dynamics and spin transport in a frustrated triangular-lattice bilayer |
| 15:00–15:30 |
Coffee break |
| 15:30–16:00(30m) |
Kotaro Shimizu
University of Tokyo
Theory |
Design principles for quasi-isotropic exchange in rare-earth quantum magnets |
| 16:00–17:00(1h) |
Kyusung Hwang
Kyung Hee University
Theory |
Raman circular dichroism reveals higher-order quantum geometry of magnons |
Friday, 16 October 2026 Day 3 · 09:00–17:30
| Time |
Speaker |
Talk title |
| 09:00–09:45(45m) |
Takahiro Onimaru
Hiroshima University
Experiment |
Magnetic properties and phase transitions in rare-earth-based frustrated effective spin-1/2 systems |
| 09:45–10:30(45m) |
Seung-Hwan Do
KRISS
Experiment |
Tunable longitudinal mode decay in an anisotropic antiferromagnet Ba2FeSi2O7 |
| 10:30–11:00 |
Coffee break |
| 11:00–12:00(1h) |
Daisuke Yamamoto
Nihon University
Theory |
Efficient quantum tomography for many-body systems |
| 12:00–13:30 |
Lunch & discussion |
| 13:30–14:00(30m) |
Yoshinori Okada
OIST
Experiment |
Title TBA |
| 14:00–14:30(30m) |
Weslei Fontana
OIST
Theory |
Boundaries of 3D fractons: insights from effective theories and exotic symmetries |
| 14:30–15:00(30m) |
Kiyu Fukui
Ritsumeikan University
Theory |
Phase diagrams of a model for Kitaev materials: classical and quantum perspectives |
| 15:00–15:30 |
Coffee break |
| 15:30–16:00(30m) |
Tim Bauer
ICTP
Theory |
Quantum magic of Kitaev spin liquids |
| 16:00–17:00(1h) |
Eun-Gook Moon
KAIST
Theory |
Identification of a quantum spin liquid |
| 17:00–17:30 |
Closing (Nic Shannon) |
Invited speakers (confirmed)
Tim Bauer (ICTP)
Sungkyun Choi (IBS)
Seunghwan Do (KRISS)
Markus Drescher (OIST)
Yejun Feng (OIST)
Weslei Bernardino Fontana (OIST)
Kiyu Fukui (Ritsumeikan Univ.)
Yi-Ping Huang (NTHU)
Kyusung Hwang (Kyung Hee Univ.)
Moyu Kato (Univ. of Tokyo)
SungBin Lee (KAIST)
Eun-Gook Moon (KAIST)
Yukitoshi Motome (Univ. of Tokyo)
Joji Nasu (Tohoku Univ.)
Yoshinori Okada (OIST)
Takahiro Onimaru (Hiroshima Univ.)
Rico Pohle (Shizuoka Univ.)
Daiki Sasamoto (Tohoku Univ.)
Kotaro Shimizu (Univ. of Tokyo)
Yasuhiro Shimizu (Shizuoka Univ.)
Ren-Bo Wang (OIST)
Daisuke Yamamoto (Nihon Univ.)
Organizers
Yoshitomo Kamiya (OIST)
Tokuro Shimokawa (OIST)
Joji Nasu (Tohoku University)
Yukitoshi Motome (University of Tokyo)
Scientific Advisor
Nic Shannon (OIST)
Funding Acknowledgements
This workshop is part of the OIST x J-PEAKS program, and is also supported by the JSPS KAKENHI program “Exploring Quantum Spin Liquids in Rare-Earth Magnetic Materials”.
Co-host
Contact
Please email academic-partnerships@oist.jp if you have any questions.
