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Associate Professor Kalpataru Pradhan from Saha Institute of Nuclear Physics Kolkata visits R-CCS
On October 30th, Associate Professor Kalpataru Pra……
Posted On 2025.10.30
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At the "1st Joint Meeting of RIKEN Quantum and the……
Posted On 2025.10.24
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Team Principal Seiji Yunoki and the Postdoctoral R……
Posted On 2025.10.24
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
- Tomonori Shirakawa, Javier Robledo-Moreno, Toshinari Itoko, Vinay Tripathi, Kento Ueda, Yukio Kawashima, Lukas Broers, William Kirby, Himadri Pathak, Miwako Tsuji, Yuetsu Kodama, Mitsuhisa Sato, Constantinos Evangelinos, Seetharami Seelam, Robert Walkup, Seiji Yunoki, Mario Motta, Petar Jurcevic, Hiroshi Ueda, Antonio Mezzacapo, “Closed-loop calculations of electronic structure on a quantum processor and a classical supercomputer at full scale”arXiv:2511.00224 (2025)
- Kazuya Shinjo, Kazuhiro Seki, Seiji Yunoki, “Emergent Discrete Time Crystals on Digital Quantum Computers: Boundary-Protected and Ancilla-Induced Disorder Mechanisms of Thermalization Slowdown”arXiv:2510.13577
- Tomoya Hayata, Kazuhiro Seki, Seiji Yunoki, “Digital quantum simulation of many-body localization crossover in a disordered kicked Ising model”arXiv:2510.01983
- Sumal Chandra, Kazuya Shinjo, Shigetoshi Sota, Seiji Yunoki, Takami Tohyama, “Low-energy photo excitation inside the Mott gap in doped Hubbard and t-J ladders”arXiv:2509.21813
- Yixuan Huang, Yuan Gao, Wei Li, Seiji Yunoki, Sadamichi Maekawa, “Dissipationless dynamics of spin supersolid states in a spin-1/2 triangular antiferromagnet with impurities”arXiv:2509.03489
- Tomonori Shirakawa, “Quantum Many-Body Computations on a Quantum-HPC Hybrid PlatformThe 1st Joint General Meeting of RIKEN Quantum and the QII RIKEN User Group, Wako, Japan (October 24, 2025)
- Tomonori Shirakawa, “Development of quantum computing simulator based on two-dimensional tensor networks”The 12th Project Report Meeting of the HPCI System Including Fugaku, Shinagawa, Japan (October 23-24, 2025)
- Han Xu, “Gutzwiller-Projected State Preparation: Linking Quantum Search Algorithms to Extremely Correlated Fermions”The 16th Asia Pacific Physics Conference, Haikou, China (October 19-24, 2025)
- Seiji Yunoki, “Prethermal time crystalline phases and noise-induced dynamics on digital quantum computers”The 16th Asia Pacific Physics Conference, Haikou, China (October 19-24, 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)
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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Technical Scientist
Yuichi Otsuka
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Technical Scientist
Shigetoshi Sota
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Student Trainee
Yaswitha Gujju
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Assistant
Masako Hirata