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Quantum Computing Systems Research Center
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A center exploring what quantum computers should be as tools for information processing.
AboutAbout the lab
Designing entire quantum computer systems
The Quantum Computing Systems Research Center studies what quantum computers should be as tools for information processing.
Its pillar is the basic policy of the Faculty of Information Science and Electrical Engineering: the fusion of I (Information Science) and E (Electrical Engineering).
The divisions for quantum computing algorithms, software, architecture, devices, and application exploration and social collaboration advance research and development in close cooperation.
Key terms
- Co-design
- Designing hardware and software together, without separating them, while looking at the whole system hierarchy
- System hierarchy
- A structure that divides a computer into layers by role and defines how the layers connect to one another
- Qubit
- The basic unit in which a quantum computer handles information
NewsLab news
View More ↗ResearchResearch themes
The center believes that quantum computers are at an early stage and that the structure of the system hierarchy itself needs to be explored. It explores what quantum computers should be as tools for information processing, by linking hardware and software.
*Illustrative imageExploring the hierarchical structure of quantum computers
Modern computers have evolved by clearly separating system layers and improving and optimizing each layer. Quantum computers are at an early stage, and the center says the hierarchical structure itself needs to be explored.
*Illustrative imageCo-design of hardware and software
The center says co-design is needed, centered on computer architecture, linking hardware fields (physics, materials, devices, and circuits) with software fields (system software, algorithms, applications, and theory). With industrial applications and social implementation in mind, it also says it needs to explore the configuration of a next-generation information processing platform that links quantum and modern (classical) computers.
*Illustrative imageNew qubits, talent development, and social applications
The center aims to contribute to the search for new qubits, the training of quantum talent who understand both hardware and software, and the social application of quantum computing technology.
MembersFaculty
The members of the Quantum Computing Systems Research Center are faculty members, including visiting faculty, divided among the divisions for quantum computing algorithms, software, architecture, devices, and application exploration and social collaboration.As of 2026
- ProfessorHiroyuki Ochiai
- ProfessorKoichi Sakurai
- Deputy Center Director / ProfessorMasao Hirokawa
- Associate ProfessorHiroshi Watanabe
- Associate ProfessorHiroyasu Tajima
- ProfessorJianjun Zhao
- ProfessorYasutaka Kamei
- Assistant ProfessorMasanari Kondo
- Center Director and ProfessorKoji Inoe
- Associate ProfessorSatoshi Kawakami
- Associate ProfessorTeruo Tanimoto
- Associate ProfessorTakeshi Nanri
- Associate ProfessorIlkwon Byun
- Associate ProfessorOlivia Chen
- ProfessorHiroki Ago
- ProfessorChihaya Adachi
- Deputy Center Director / ProfessorNaho Itagaki
- ProfessorTakashi Kimura
- ProfessorMasaharu Shiratani
- ProfessorTomofumi Tada
- ProfessorKentaro Nomura
- ProfessorYasukazu Murakami
- Associate ProfessorHaruki Kiyama
- Associate ProfessorNaoto Yamashita
- ProfessorSatoshi Iikubo
- ProfessorYuichi Harada
- ProfessorHisato Yabuta
- Associate ProfessorYoshiharu Mori
- Associate ProfessorYuichi Hisatani
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “IBM Quantum Computer Demo at ITUWTSA 2024, Delhi 2” Dev Jadiya / CC BY-SA 4.0 (cropped)
- Exploring the hierarchical structure of quantum computers: “IQM Quantum Computer Espoo Finland” Ragsxl / CC BY-SA 4.0 (cropped)
- Co-design of hardware and software: “Hardware-software co-design” FrancezcoPezce / CC0 (cropped)
- New qubits, talent development, and social applications: “Bernstein Vazirani quantum circuit” Vtomole / CC BY-SA 4.0 (cropped)
- Related lab (光・量子プロセス研究開発センター): “Excimer-Laser-MEL80” Philos2000 / CC BY-SA 3.0 (cropped)
- Related lab (〈知能ロボティクス・知覚情報処理〉): “Lidar P1270901” David Monniaux / CC BY-SA 3.0 (cropped)
- Related lab (知能ロボティクス・知覚情報処理
（中嶋 一斗） ): “LIDAR equipped robot” S. Winkvist / Public domain (cropped)
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