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
- Kazuya Shinjo, Kazuhiro Seki, Tomonori Shirakawa, Rong-Yang Sun, Seiji Yunoki, “Unveiling clean two-dimensional discrete time quasicrystals on a digital quantum computer”arXiv:2403.16718
- Rong-Yang Sun, Tomonori Shirakawa, Seiji Yunoki, “Improved real-space parallelizable matrix-product state compression and its application to unitary quantum dynamics simulation”arXiv:2312.02667
- Kazuma Nagao, Ippei Danshita, and Seiji Yunoki, “Semiclassical descriptions of dissipative dynamics of strongly interacting Bose gases in optical lattices”arXiv:2307.16170
- Kazuya Shinjo, Shigetoshi Sota, Seiji Yunoki, and Takami Tohyama, “Spin loop-current textures in the Hubbard models”arXiv:2305.13557
- Takami Tohyama, Kazuya Shinjo, Shigetoshi Sota, and Seiji Yunoki, “Anomalous suppression of photo-induced in-gap weight in the optical conductivity of a two-leg Hubbard ladder”arXiv:2305.05498
- Zhang, Hao-Kai, Rong-Yang Sun, and Zheng-Yu Weng, “Pair density wave characterized by a hidden string order parameter”Phys. Rev. B 108, 115136 (2023)
- Rong-Yang Sun, Tomonori Shirakawa, and Seiji Yunoki, “Efficient variational quantum circuit structure for correlated topological phases”Phys. Rev. B 108, 075127 (2023)
- Kazuya Shinjo, Shigetoshi Sota, Seiji Yunoki, and Takami Tohyama, “Controlling inversion and time-reversal symmetries by subcycle pulses in the one-dimensional extended Hubbard model”Phys. Rev. B 107, 195103 (2023)
- 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”J. Phys.: Condens. Matter 35, 195601 (2023)
- Kenji Tsutsui, Kazuya Shinjo, Shigetoshi Sota, and Takami Tohyama, “Exciton-assisted low-energy magnetic excitations in a photoexcited Mott insulator on a square lattice”Commun. Phys. 6, 41 (2023)