Recent News

- Z
_{3}Berry phases for quantum spins - Non-uniform flux and particle blocking
- Our new member, Kazuki Sone, will tell us on edge states of non-linear systems
- Bulk-edge correspondence for energy dependent systems/nonlinear eigen value problems
- SKCM² Spring Symposium: Nara, Japan
- APS March meeting 2024
- Bulk-edge correspondence (Encyclopedia of condensed matter physics, 2nd Ed.)
- TTQM2023 Kashiwa
- The Physical Society of Japan, Annual meeting 9/16-9/19 (2023), Tohoku Univ.
- Nontrivial Topology of Nontopological Nonlinear Waves

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Y. Hatsugai, T. Fukui, and H. Aoki, Phys. Rev. B 74, 205414 (2006)

- Y. Hatsugai, J. Phys. Soc. Jpn. 73, 2604 (2004)
- “Explicit Gauge Fixing for Degenerate Multiplets: A Generic Setup for Topological Orders”
- Y. Hatsugai, J. Phys. Soc. Jpn. 75, 123601 (2006)
- “Quantized Berry Phases as a Local Order Parameter of a Quantum Liquid”
- Y. Hatsugai,
*New J. Phys.***12**065004 (2010) - “Symmetry-protected \(\mathbb{Z}_2\)-quantization and quaternionic Berry connection with Kramers degeneracy”