Moonshot Goal 6Realization of a fault-tolerant universal quantum computer that will revolutionize economy, industry, and security by 2050.

A fault-tolerant universal quantum computer will help tackle our complex social challenges.(PDF 677KB)


While it is said that the progress of conventional computers is reaching its limits, it is important to be able to respond to the explosion of information processing demands. If we want quantum computing to rapidly solve our numerous and complex social problems, we need a fault-tolerant universal quantum computer that can perform precise computation while correcting quantum errors. In order to realize such a fault-tolerant universal quantum computer we are conducting R&D into the relevant hardware, software, networks, and related quantum technologies.

Program Director (PD)

KITAGAWA MasahiroProfessor, Graduate School of Engineering Science, Osaka University

【Message from PD】

In order to realize a fault-tolerant universal quantum computer, it is necessary to integrate a huge number of qubits, provide redundancy using quantum error correcting codes, and reduce the physically arising quantum error to below the fault-tolerant threshold. Therefore, we aim to develop a certain scale of quantum computers and demonstrate the effectiveness of quantum error correction.

Considering the possibility of massively integrated quantum computers through quantum communication, R&D projects will be implemented in three categories: ‘1) hardware’, ‘2) communication networks’, and ‘3) theory and software’. Specifically we would like R&D projects in each category to compete for feasibility, collaborate across categories, and conduct R&D to achieve the Moonshot Goal.


Click here to see the list of advisors

NAKAMURA Yasunobu* Professor, Research Center for Advanced Science and Technology, The University of Tokyo
YAMASHITA Shigeru * Professor, College of Information Science and Engineering, Ritsumeikan University
ISHIUCHI Hidemi Former President, Evolving nano process Infrastructure Development Center, Inc., EIDEC
IMOTO Nobuyuki Specially Appointed Professor, Center for Quantum Information and Quantum Biology, Osaka University
OZAWA Masanao Designated Professor, Center for Mathematical Science and Artificial Intelligence, Chubu University
KAWABATA Shiro Deputy Director, Research Center for Emerging Computing Technologies, National Institute of Advanced Industrial Science and Technology
KOZUMA Mikio Professor, Institute of Innovative Research, Tokyo Institute of Technology
SANO Kentaro Team Leader, RIKEN Center for Computational Science
SHIGEMOTO Isamu Chief Research Associate, Advanced Materials Research Laboratories, Toray Industries, Inc.
MURAO Mio Professor, Graduate School of Science, The University of Tokyo
WAKAYAMA Masato Fundamental Mathematics Research Principal, NTT Institute for Fundamental Mathematics, Nippon Telegraph and Telephone Corporation/Professor Emeritus, Kyushu University

*Sub Program Director

R&D Project

Research and Development of Theory and Software for Fault-tolerant Quantum Computers
Project Manager KOASHI Masato
Professor, Graduate School of Engineering, The University of Tokyo
Outline This project aims to construct a co-design model encompassing qubit design, fault-tolerant architecture, and compilers and programming languages for efficient computation through collaborations of researchers in quantum information, architecture, and specific physical systems, thereby endeavoring to realize a large-scale quantum computer by the year 2050.
Development of Quantum Interfaces for Building Quantum Computer Networks
Project Manager KOSAKA Hideo
Professor, Faculty of Engineering /Institute of Advanced Sciences, Yokohama National University
Outline This project aims to develop a quantum interface in which quantum memory is combined with an optomechanical crystal, in order to connect the superconducting qubit and the communication photon, towards realization of a large-scale superconducting quantum computer by 2050.
Fault-tolerant Quantum Computing with Photonically Interconnected Ion Traps
Project Manager TAKAHASHI Hiroki
Assistant Professor, Experimental Quantum Information Physics Unit, Okinawa Institute of Science and Technology Graduate University
Outline This project aims to develop ion trap devices that facilitate building large-scale systems beyond the limitations posed by conventional approaches. The new approach is based on a novel idea of photonically interconnecting multiple ion traps. Thereby we aim to realize large-scale quantum computing by 2050.
Development of Large-scale Fault-tolerant Universal Optical Quantum Computers
Project Manager FURUSAWA Akira
Professor, School of Engineering, The University of Tokyo
Outline This project aims at the realization of large-scale fault-tolerant universal quantum computers based on a “quantum look-up table” by 2050, which work at room temperature. Here, the “quantum look-up table” is originally developed by ourselves.
Large-scale Silicon Quantum Computer
Project Manager MIZUNO Hiroyuki
Senior Chief Researcher, Center for Exploratory Research, R&D Group, Hitachi, Ltd.
Outline This project aims to achieve large-scale integration of silicon qubits by utilizing silicon semiconductor integrated circuit technology. By 2050, we aim to achieve a large-scale quantum computer featuring high integration and low power consumption.
Quantum Cyberspace with Networked Quantum Computer
Project Manager YAMAMOTO Takashi
Professor, Graduate School of Engineering Science/Center for Quantum Information and Quantum Biology, Osaka University
Outline This project aims to develop elemental technologies for networking quantum computers with photons, atoms, semiconductors and so on, aiming to network small and medium quantum computers. We further promote networked quantum computers on a larger scale towards the achievement of universal quantum computation by 2050.
Development of Integration Technologies for Superconducting Quantum Circuits
Project Manager YAMAMOTO Tsuyoshi
Research Fellow, System Platform Research Laboratories, NEC Corporation
Outline This project aims to develop hardware technologies required for scaling up the circuit of superconducting qubits in order to accelerate R&D of superconducting quantum computer. Using these technologies we aim to realize large-scale superconducting quantum computer by 2050.



Moonshot Goal 6 R&D Program Secretariat
Department of Moonshot Research and Development Program, Japan Science and Technology Agency

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