RESEARCH SUMMARY
One of our main focuses is to develop state-of-the-art numerical methods such as quantum Monte Carlo methods and tensor network methods including the density matrix renormalization method for simulating ground states as well as quantum dynamics of strongly correlated quantum systems. We are also interested in developing quantum algorithms for quantum many-body systems and quantum computing simulations using classical computers such as Supercomputer Fugaku, as a ground challenge of information science in quest of a new computing paradigm.
- SUBMITTED PAPERS
- PUBLICATIONS
- Kazuma Nagao, Tomonori Shirakawa, Rongyang Sun, Peter Prelovšek, Seiji Yunoki, "Probing many-body localization crossover in quasiperiodic Floquet circuits on a quantum processor", arXiv:2603.12675 (2026)
- Kazuya Shinjo, Kazuhiro Seki, Seiji Yunoki, "Quantum synchronization and chimera states in a programmable quantum many-body system", arXiv:2603.11910 (2026)
- William Kirby et al., (including Han Xu, Lukas Broers, Tomonori Shirakawa, Seiji Yunoki), "Observation of Improved Accuracy over Classical Sparse Ground-State Solvers using a Quantum Computer", arXiv:2603.03496 (2026)
- Jun Doi, Tomonori Shirakawa, Yukio Kawashima, Seiji Yunoki, Hiroshi Horii, "GPU-Accelerated Selected Basis Diagonalization with Thrust for SQD-based Algorithms", arXiv:2601.16637 (2026)
- Kazuhiro Seki, Yuta Kikuchi, Tomoya Hayata, Seiji Yunoki, Dissipative ground-state preparation of a quantum spin chain on a trapped-ion quantum computer, arXiv:2601.08137
- Kazuya Shinjo, Kazuhiro Seki, Tomonori Shirakawa, Rong-Yang Sun, Seiji Yunoki, “Unveiling clean two-dimensional discrete time crystals on a digital quantum computer”, npj Quantum Information 12, 41 (2026)
- Sumal Chandra, Kazuya Shinjo, Shigetoshi Sota, Seiji Yunoki, Takami Tohyama, “Low-energy photoexcitation inside the Mott gap in doped Hubbard and t-J ladders”, Phys. Rev. B 113, 045127 (2026)
- Satoshi Ejima, Kazuhiro Seki, Benedikt Fauseweh, Seiji Yunoki, “Probabilistic imaginary-time evolution in state-vector-based and shot-based simulations and on quantum devices”, Phys. Rev. Research 7, 043182 (2025)
- Han Xu, Kazuhiro Seki, and Seiji Yunoki, “Preparing the Gutzwiller wave function for attractive SU(3) fermions on a quantum computer”, Phys. Rev. Research 7, 033290 (2025)
- Yuichi Otsuka, Kazuhiro Seki, and Seiji Yunoki, “Quantum conditional mutual information as a probe of measurement-induced entanglement phase transitions”, Phys. Rev. B 112, 054301 (2025)
PEOPLE
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Team Principal
Seiji Yunoki
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Senior Research Scientist
Tomonori Shirakawa
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Postdoctoral Researcher
Kazuma Nagao
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Postdoctoral Researcher
Hidehiko Kohshiro
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Postdoctoral Researcher
Ravi Teja Ponnaganti
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Postdoctoral Researcher
Han Xu
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Postdoctoral Researcher
Lukas Broers
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Postdoctoral Researcher
Shaoxiong Li
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Postdoctoral Researcher
Yuki Miyazaki
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Postdoctoral Researcher
Tohru Mashiko
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Postdoctoral Researcher
Zeqing Wang
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Postdoctoral Researcher
Anshuman Bhardwaj
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JSPS PD Researcher
Masahiro Takahashi
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Junior Research Associate
Yugo Takahashi
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International Program Associate
Nonia Vaquero Sabater
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Technical Scientist
Yuichi Otsuka
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Technical Scientist
Shigetoshi Sota
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Student Trainee
Yaswitha Gujju