Exploring
Quantum World

Computational Materials Science Research Team
量子系物質科学研究チーム

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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
  • Lukas Broers, Rong-Yang Sun, Seiji Yunoki, “Scalable Simulation of Quantum Many-Body Dynamics with Or-Represented Quantum Algebra”arXiv:2506.13241
  • Kousuke Nogaki, Steffen Backes, Tomonori Shirakawa, Seiji Yunoki, Ryotaro Arita, “Symmetry-adapted sample-based quantum diagonalization: Application to lattice model”arXiv:2505.00914
  • Kazuma Nagao, Daisuke Yamamoto, Seiji Yunoki, Ippei Danshita, “Melting of a bosonic Mott insulator in kagome optical lattices with sign-inverted hopping”arXiv:2504.19407
  • Han Xu, Kazuhiro Seki, Seiji Yunoki, “Preparing the Gutzwiller wave function for attractive SU(3) fermions on a quantum computer”arXiv:2504.18149
  • Qing Xie, Kazuhiro Seki, Tomonori Shirakawa, Seiji Yunoki, “Digital quantum simulation of the Su-Schrieffer-Heeger model using a parameterized quantum circuit”arXiv:2504.07499
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  • Javier Robledo-Moreno, Mario Motta, Holger Haas, Ali Javadi-Abhari, Petar Jurcevic, William Kirby, Simon Martiel, Kunal Sharma, Sandeep Sharma, Tomonori Shirakawa, Iskandar Sitdikov, Rong-Yang Sun, Kevin J. Sung, Maika Takita, Minh C. Tran, Seiji Yunoki, Antonio Mezzacapo, “Chemistry Beyond the Scale of Exact Diagonalization on a Quantum-Centric Supercomputer”Science Advances 11, eadu9991 (2025)
  • Xiangyang Liu, Junwen Lai, Jie Zhan, Tianye Yu, Peitao Liu, Seiji Yunoki, Xing-Qiu Chen, and Yan Sun, “Nonlinear optical responses in kagome lattice with inversion symmetry breaking”ACS Nano 19, 19018 (2025)
  • Kazuhiro Seki, Yuta Kikuchi, Tomoya Hayata, Seiji Yunoki “Simulating Floquet scrambling circuits on trapped-ion quantum computers”Phys. Rev. Research 7, 023032 (2025)
  • Koji Ishibashi et al. (37 authors including Kazuhiro Seki, Tomonori Shirakawa and Seiji Yunoki), “Research on Quantum Materials and Quantum Technology at RIKEN”ACS Nano 19, 12427 (2025)
  • Yukio Nozaki, Hiroaki Sukegawa, Shinichi Watanabe, Seiji Yunoki, Taisuke Horaguchi, Hayato Nakayama, Kazuto Yamanoi, Zhenchao Wen, Cong He, Jieyuan Song, Tadakatsu Ohkubo, Seiji Mitani, Kazuki Maezawa, Daichi Nishikawa, Shun Fujii, Mamoru Matsuo, Junji Fujimoto, and Sadamichi Maekawa, “Gyro-spintronic material science using vorticity gradient in solids”Science and Technology of Advanced Materials 26, 2428153 (2025)
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