研究概要
当研究チームでは、固体物質を中心とした量子多体系の性質をミクロレベルより明らかにする研究を行っています。
個々の粒子が多数集まってはじめて現れる集団量子現象の解明および予言を目指し、様々な数値計算手法を駆使して研究しています。
さらに、「富岳」の性能を最大限に発揮できる、量子系に対する数値シミュレーション手法の研究開発も行っています。
- 投稿中
- 発表論文
- Zhang, Hao-Kai, Rong-Yang Sun, and Zheng-Yu Weng, “Pair density wave characterized by a hidden string order parameter”arXiv preprint arXiv:2212.06170
- Jing-Yu Zhao, Shuai A. Chen, Rong-Yang Sun, and Zheng-Yu Weng, “Continuous transition from a Landau quasiparticle to a neutral spinon”arXiv preprint arXiv:2210.04918
- Hiroshi Watanabe, Tomonori Shirakawa, Kazuhiro Seki, Hirofumi Sakakibara, Takao Kotani, Hiroaki Ikeda, and Seiji Yunoki, “Monte Carlo study of cuprate superconductors in a four-band d-p model: Role of orbital degrees of freedom”arXiv preprint arXiv:2209.07732
- Kenji Tsutsui, Kazuya Shinjo, Shigetoshi Sota, Takami Tohyama, “Exciton-assisted low-energy magnetic excitations in a photoexcited Mott insulator on the square lattice”arXiv preprint arXiv:2207.03141
- Rong-Yang Sun, Hui-Ke Jin, Hong-Hao Tu, and Yi Zhou, “Possible chiral spin liquid state in the S=1/2 kagome Heisenberg model”arXiv preprint arXiv:2203.07321
- Jing-Yu Zhao, Shuai A. Chen, Rong-Yang Sun, and Zheng-Yu Weng, “Continuous transition from a Landau quasiparticle to a neutral spinon”Phys. Rev. B 107, 085112 (2023)
- Rong-Yang Sun, Tomonori Shirakawa, and Seiji Yunoki, “Parameterized quantum circuit for weight-adjustable quantum loop gas”Phys. Rev. B 107, L041109 (2023)
- Q Xie, Kazuhiro Seki, and Seiji Yunoki, “Variational counterdiabatic driving of the Hubbard model for ground-state preparation”Phys. Rev. B 106, 155153 (2022)
- Kazuhiro Seki and Seiji Yunoki, “Energy-filtered random-phase states as microcanonical thermal pure quantum states”Phys. Rev. B 106, 155111 (2022)
- Kazuya Shinjo, Shigetoshi Sota, and Takami Tohyama, “Glassy dynamics of the one-dimensional Mott insulator excited by a strong terahertz pulse”Phys. Rev. Research 4, L032019 (2022)