Publications

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*This web page shows the latest information.

Preprints

1. Sogen Ikegami, Kiyu Fukui, Rico Pohle, and Yukitoshi Motome, "Kitaev Meets AKLT: Competing Quantum Disorder in Spin-3/2 Honeycomb Systems", arXiv:2512.06322.

2. Sogen Ikegami, Kiyu Fukui, Shun Okumura, Yasuyuki Kato, and Yukitoshi Motome, "Topological transition induced by selective random defects on a honeycomb lattice", arXiv:2511.14134.

Publications

1. Kiyu Fukui and Yukitoshi Motome, "Topological Majorana flat bands in the Kitaev model on a Bishamon-kikko lattice", Phys. Rev. B 112, 144411 (2025). [arXiv:2507.13688]

2. Sogen Ikegami, Kiyu Fukui, Shun Okumura, Yasuyuki Kato, and Yukitoshi Motome, "Topological phase diagram of the Haldane model on a Bishamon-kikko--honeycomb lattice", Phys. Rev. B 110, 245107 (2024). [arXiv:2405.06287]

3. Kiyu Fukui, Yasuyuki Kato, and Yukitoshi Motome, "Magnetic field effects on the Kitaev model coupled to environment", Phys. Rev. B 110, 024429 (2024). [arXiv:2402.05516]

4. Kiyu Fukui, Yasuyuki Kato, and Yukitoshi Motome,  "Ground-State Phase Diagram of the Kitaev-Heisenberg Model on a Three-dimensional Hyperhoneycomb Lattice", J. Phys. Soc. Jpn. 92, 064708 (2023). [arXiv:2303.09156]

5. Kiyu Fukui, Yasuyuki Kato, Joji Nasu, and Yukitoshi Motome, "Ground-state phase diagram of spin-S Kitaev-Heisenberg models", Phys. Rev. B 106, 174416 (2022). [arXiv:2207.03786]

6. Kiyu Fukui, Yasuyuki Kato, Joji Nasu, and Yukitoshi Motome, "Feasibility of Kitaev quantum spin liquids in ultracold polar molecules", Phys. Rev. B 106, 014419 (2022) [arXiv:2204.06144]

7. Kiyu Fukui and Yusuke Kato, "Even- and Odd-Frequency Superconductivity in Q1D Organic Superconductors under Magnetic Field", J. Low. Temp. Phys. 196, 234 (2019).

8. Kiyu Fukui and Yusuke Kato, “Mixing of odd- and even-frequency pairings in strongly correlated electron systems under magnetic field”, J. Phys. Soc. Jpn. 87, 014706 (2018) [arXiv:1707.07257]

News letter

1. 福井毅勇, "3 次元 Kitaev 磁性体の汎関数繰り込み群による研究", スーパーコンピューティングニュース (東京大学情報基盤センター) Vol. 25 No. 5, pp. 20-24 (Sept., 2023).

2. 福井毅勇, "汎関数繰り込み群による量子スピン液体候補物質の物性解明", スーパーコンピューティングニュース (東京大学情報基盤センター) Vol. 25 No. 2, pp. 42-47 (Mar., 2023).

3. 福井毅勇, "繰り込み群による冷却極性分子系での量子スピン液体実現可能性の探索", スーパーコンピューティングニュース (東京大学情報基盤センター) Vol. 24 No. 5, pp. 31-34 (Sept., 2022).

4. Kiyu Fukui and Yusuke Kato, "Feasibility study of Kitaev quantum spin liquid by functional renormalization approach", Activity Report 2021 (ISSP Supercomputer Center) pp. 215-216 (2022).