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
- 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
- Kazuhiro Seki, Seiji Yunoki, “Energy-filtered random-phase states as microcanonical thermal pure quantum states”arXiv preprint arXiv:2207.01782
- Q Xie, Kazuhiro Seki, Seiji Yunoki, “Variational counterdiabatic driving of the Hubbard model for ground-state preparation”arXiv preprint arXiv:2206.07597
- Kazuya Shinjo, Shigetoshi Sota, and Takami Tohyama, “Metallic and glassy states of the one-dimensional Mott insulator excited by electric pulses”arXiv preprint arXiv:2202.04322
- Tomonori Shirakawa, Hiroshi Ueda, and Seiji Yunoki, “Automatic quantum circuit encoding of a given arbitrary quantum state”arXiv preprint arXiv:2112.14524
- Tomonori Shirakawa and Seiji Yunoki, “Local multiplet formation around a single vacancy in graphene: An effective Anderson model analysis based on the block-Lanczos DMRG method”Phys. Rev. B 105, 184110 (2022)
- Hiroshi Ueda, Seiji Yunoki, and Tokuro Shimokawa, “Quantum spin solver near saturation: QS3”Comput. Phys. Commun. 277, (2022) 108369 (2022)
- Kazuhiro Seki, Yuichi Otsuka, and Seiji Yunoki, “Gutzwiller wave function on a quantum computer using a discrete Hubbard-Stratonovich transformation”Phys. Rev. B 105, 155119 (2022)
- Takami Tohyama, Kazuya Shinjo, Shigetoshi Sota, and Kenji Tsutsui, “Numerical simulations of spectroscopic properties in two-dimensional Mott insulator”J. Phys.: Conf. Ser. 2207 012028 (2022)
- Yuichi Otsuka, Kazuhiro Seki, Sandro Sorella, and Seiji Yunoki, “QMC study of the chiral Heisenberg Gross-Neveu universality class” J. Phys.: Conf. Ser. 2207 012030 (2022)