Organization overview
This project gathers researchers involved in quantum computing and related fields. They are grouped by the following three research themes and work together cooperatively.

Dr. Fujii’s Group
This group develops basic methods to extract computer performance and performs R&D on quantum software.

Dr. Le Gall’s Group
This group investigates the theoretical foundations of quantum computing and develops theoretically guaranteed quantum algorithms.

Dr. Yamamoto’s Group
This group develops quantum algorithms geared towards quantum computer applications based on quantum computers.
Project overview
Members
Dr. Fujii's Group
The development of basic methods to extract computer performance and R&D on quantum software
The group identifies issues with the quantum advantage in calculations of quantum chemical and physical properties and builds quantum algorithms to solve these issues. In addition, the group derives basic algorithms for quantum machine learning utilizing quantum computing and expands its use to solve issues. As for a methodology, the group employs highspeed simulators using conventional computers to explore the utilization methods of quantum computers expected to appear in the next five to ten years. The group also designs system architectures to utilize the limited functionality of currently existing quantum computers, and performs software research to enhance the performance from quantum devices.


Project LeaderKeisuke Fujii
Deputy Director, Center for Quantum Information and Quantum Biology, Osaka University
Professor, Graduate School of Engineering Science, Osaka UniversityQuantum computing



Yuki Kurashige
Associate Professor, Graduate School of Science, Kyoto University
Theoretical Chemistry



Kohei Nakajima
Associate Professor, Graduate School of Information Science and Technology, The University of Tokyo
Nonlinear Dynamical Systems, Reservoir Computing, Physical Reservoir Computing



Yuuki Tokunaga
Distinguished researcher, NTT Computer and Data Science Laboratories
Innovative Computing Architecture laboratoryQuantum computer, Quantum optics



Takefumi Miyoshi
Director, etrees.Japan, Inc.
Research Dept.Compiler, Computer Architecture, Reconfigurable Computing, SW/HW codesign

Full name  Organization  Title  Specialization/Research theme 

Makoto Negoro  Center for Quantum Information and Quantum Biology, Osaka University  Associate Professor  Quantum information processing, Quantum sensing 
Wataru Mizukami  Center for Quantum Information and Quantum Biology, Osaka University  Associate Professor  Quantum Chemistry, Quantum computing 
Hiroshi Ueda  Center for Quantum Information and Quantum Biology, Osaka University  Associate Professor  Computatinal Quantum Physics 
Koichi Miyamoto  Center for Quantum Information and Quantum Biology, Osaka University  Specially Appointed Associate Professor  Quantum computing, Financial engineering 
Takanori Sugimoto  Center for Quantum Information and Quantum Biology, Osaka University  Specially Appointed Associate Professor  Quantum materials physics 
Kosuke Mitarai  Graduate School of Engineering Science, Osaka University  Assistant Professor  Quantum computing, Quantum Chemistry, Machine Learning 
Hideaki Hakoshima  Center for Quantum Information and Quantum Biology, Osaka University  Specially Appointed Assistant Professor  Quantum physics, Statistical mechanics 
Kosuke Ito  Center for Quantum Information and Quantum Biology, Osaka University  Specially Appointed Researcher  Quantum information theory 
Ken Okada  Center for Quantum Information and Quantum Biology, Osaka University  Specially Appointed Researcher  Quantum computing, condensed matter theory 
Shohei Miyakoshi  Center for Quantum Information and Quantum Biology, Osaka University  Specially Appointed Researcher  Quantum materials physics 
Hideaki Okane  Center for Quantum Information and Quantum Biology, Osaka University  Specially Appointed Researcher  Quantum information theory 
Junichi Haruna  Center for Quantum Information and Quantum Biology, Osaka University  Specially Appointed Researcher  Particle physics 
Mauro Cainelli  Graduate School of Science, Kyoto University  ProgramSpecific Researcher  Theoretical Chemistry 
Soichiro Nishio  Graduate School of Science, Kyoto University  Research assistant  Theoretical Chemistry 
Yasunari Suzuki  NTT Computer and Data Science Laboratories Innovative Computing Architecture laboratory 
Associate distinguished researcher  Quantum error correction, Quantum software development 
Suguru Endou  NTT Computer and Data Science Laboratories Innovative Computing Architecture laboratory 
Associate distinguished researcher  Quantum error mitigation, Nearterm quantum algorithm 
Kaoru Yamamoto  NTT Computer and Data Science Laboratories Innovative Computing Architecture laboratory 
Postdoctoral fellow  Quantum error mitigation 
Rui Asaoka  NTT Computer and Data Science Laboratories Innovative Computing Architecture laboratory 
Postdoctoral fellow  Quantum information, Quantum optics 
Shigeo Hakkaku  NTT Computer and Data Science Laboratories Innovative Computing Architecture laboratory 
Postdoctoral fellow  Quantum error mitigation, Classical simulation 
Tomohiro Shitara  NTT Computer and Data Science Laboratories Innovative Computing Architecture laboratory 
Postdoctoral fellow  Quantum information, Quantum optics 
Keisuke Koike  etrees.Japan, Inc. Development Dept. 
Engineer  Reconfigurable Computing 
Dr. Le Gall's Group
Research on the theoretical foundations of quantum computing and development of theoretically guaranteed quantum algorithms
The group promotes research on the theory of quantum computing to build the theoretical foundation of the entire project. Specifically, the group theoretically analyzes quantum hardware and software in collaboration with the Osaka University group and the Keio University group. The main goal is to provide theoretical guarantees of quantum advantage for quantum devices and algorithms. The group also develops new computing methods utilizing quantum effects unique to quantum computers (i.e., not effectively simulated by conventional computers), and explores innovative methods to apply quantum computers that should be realized in the next 10–20 years.


François Le Gall
Professor, Graduate School of Mathematics, Nagoya University
Quantum algorithms, quantum complexity theory



Akinori Kawachi
Professor, Department of Information Engineering, Graduate School of Engineering, Mie University
Quantum Algorithms and Quantum Protocols



Tomoyuki Morimae
Associate Professor, Yukawa Institute for Theoretical Physics, Kyoto University
quantum computing , quantum cryptography



Katsuyuki Takashima
Professor, Faculty of Education and Integrated Arts and Sciences, Waseda University
Theory of Cryptography, PostQuantum Cryptography

Full name  Organization  Title  Specialization/Research theme 

Harumichi Nishimura  Department of Mathematical Informatics, Graduate School of Informatics, Nagoya University  Professor  Quantum complexity theory 
Francesco Buscemi  Department of Mathematical Informatics, Graduate School of Informatics, Nagoya University  Professor  Quantum information theory 
Jacques Garrigue  Graduate School of Mathematics, Nagoya University  Professor  Theory of programming languages 
Eyuri Wakakuwa  Department of Mathematical Informatics, Graduate School of Informatics, Nagoya University  Designated associate professor  Quantum information theory 
Kohtaro Kato  Department of Mathematical Informatics, Graduate School of Informatics, Nagoya University  Assistant Professor  Quantum information, Quantum condensed matter physics 
Qisheng Wang  Graduate School of Mathematics, Nagoya University  Designated assistant professor  Quantum algorithms 
Ansis Rosmanis  Graduate School of Mathematics, Nagoya University  Designated assistant professor  Quantum algorithms 
Takafumi Saikawa  Graduate School of Mathematics, Nagoya University  Researcher  Theory of programming languages 
Ray Maharshi  Department of Information Engineering, Graduate School of Engineering, Mie University  Project Assistant Professor  Optimization in Quantum Computing 
Masazumi Honda  Yukawa Institute for Theoretical Physics, Kyoto University  Assistant Professor  quantum computing for field theory 
Dall'Arno Michele  Yukawa Institute for Theoretical Physics, Kyoto University  ProgramSpecific Assistant Professor  quantum information 
Ben Baragiola  Yukawa Institute for Theoretical Physics, Kyoto University  Research Assistant Professor  quantum error correction 
Dr. Yamamoto's Group
Develop quantum algorithms geared towards quantum computer applications
The group develops quantum algorithms that should be useful in the very near future. They focus on the utilization of existing quantum computers and work in close collaboration with academia and various industries. After careful examination of diverse issues with partner corporations, the group targets problems in finance, chemistry, and AI. The group also compiles issues in quantum computing and builds theories to reduce hurdles in using them. For example, the group has developed a quantum algorithm for a division method using a parallel multiplier, an information recovery method for statistical processing of the output, and design theory for approximate quantum circuit synthesis.


Naoki Yamamoto
Professor, Faculty of Science and Technology, Keio University
Quantum Computation, Quantum Control



Kouichi Semba
Executive Researcher, National Institute of Information and Communications Technology
Advanced ICT Researh InstituteCondensed matter physics, macroscopic quantum physics



Kunihiko Sadakane
Professor, Department of Mathematical Informatics, Graduate School of Information Science and Technology, The University of Tokyo
Algorithms and data structures

Full name  Organization  Title  Specialization/Research theme 

Yasubumi Sakakibara  Faculty of Science and Technology, Keio University  Professor  Bioinformatics 
Rodney Van Meter  Faculty of Environment and Information Studies, Keio University  Professor  Quantum Computation 
Hiroshi Watanabe  Faculty of Science and Technology, Keio University  Associate Professor  Large scale simulations, Phase transition 
Shu Tanaka  Faculty of Science and Technology, Keio University  Associate Professor  Quantum Annealing, Statistical Physics 
Takahiko Satoh  Faculty of Science and Technology, Keio University  Associate Professor  NISQ Middleware・Algorithm Design 
Yoichi Suzuki  Graduate School of Science and Technology, Keio University  Project Associate Professor  Non Equilibrium Statistical Physics 
Michihiko Sugawara  Graduate School of Science and Technology, Keio University  Project Associate Professor  Theoretical chemistry, Quantum (Dynamics) Control 
Kenji Sugisaki  Graduate School of Science and Technology, Keio University  Project Associate Professor  Quantum chemistry 
Hideaki Kawaguchi  School of Medicine,Keio University  Project Associate Professor  Quantum Machine Learning 
Tatsuhiko Koike  Faculty of Science and Technology, Keio University  Senior Assistant Professor  Theoretical Physics, Quantum information theory 
Eriko Kaminishi  Graduate School of Science and Technology, Keio University  Project Senior Assistant Professor  Statistical Physics 
Sahel Ashhab  National Institute of Information and Communications Technology Advanced ICT Researh Institute 
Executive Researcher  Quantum Information Theory, Quantum Control 
Kenichi Takizawa  National Institute of Information and Communications Technology Network Research Institute 
Director  Signal Processing for Communications, statistical signal processing 
Yoshinori Aono  National Institute of Information and Communications Technology Cybersecurity Research Institute 
Senior Reseacher  Publickey cryptography, lattice algorithms 
Kouki Yonaga  National Institute of Information and Communications Technology Network Research Institute 
Reseacher  Quantum ICT・Quantum machine learning 
Fumiki Yoshihara  Faculty of Science Division I Department of Physics, Tokyo University of Science  Professor  Superconducting Quantum Circuits, macroscopic quantum physics 
Chakraborty Sankardeep  Department of Mathematical Informatics, Graduate School of Information Science and Technology, The University of Tokyo  Project Assistant Professor  Algorithms and data structures 