Moonshot Goal 6: Fault-tolerant Quantum Computing with Photonically Interconnected Ion Traps

MOONSHOT GOAL6 R&D Project Fault-tolerant Quantum Computing with Photonically Interconnected Ion Traps


In this project, we focus on ion traps as a hardware to realize a quantum computer and are developing technologies for a fault-tolerant universal quantum computers using ion traps — charged atomic particles confined in space 
by electromagnetic force.
In particular, to realize a large-scale system, we use a network created by small ion traps interconnected quantumly by photons.

Future image with contribution of the R&D project

We will establish a technological foundation for arbitrarily increasing the number of quantum bits through photonic interconnections of ion traps, which will build a fault-tolerant quantum computer with high versatility.
With this achievement, our future would change as follows:

  • As a solution to social issues, rigorous simulation will become possible concerning chemical substances, reaction processes, and functional materials, for the purpose of the development of new drugs, the realization of artificial photosynthesis, the development of catalysts for fertilizer production and carbon fixation, and the search for room-temperature superconducting materials.
  • It will completely enable secure communications from anywhere and will solve many social issues caused by the present inadequacy in internet security.

Project Timeline

Project Timeline

Project Members

Hiroki Takahashi(OIST)Project Manager

R&D Theme 1: Photonic Interconnects of Ion Traps
Improving the efficiency of photonic interconnects significantly via cavity QED.

About the Project Manager ▶

Atsushi Noguchi (University of Tokyo)

R&D Theme 2: Ion Traps Using Superconducting MW circuits
Realizing fast high-fidelity quantum logic gate with low power using superconducting resonant circuit.

Noguchi Laboratory, Komaba Institute for Science, The University of Tokyo ▶

Kenji Toyoda(Osaka University)

R&D Theme 3: Quantum Error Correction Using the Phononic DoF
Realizing bosonic encoding using quantum control of multiple collective phonon modes.

Toyoda Group, Center for QIQB, Osaka University ▶

Kazuhiro Hayasaka(NICT)

R&D Theme 4-1: Fabrication and Characterization of High-performance Ion Traps
Supplying ion traps to support each sub-project and versatile ion traps to the community.

R&D Theme 4-2: R&D for Cloud Quantum Computing (Kenji Toyoda)
Verification for the social/commercial implementation.

Quantum ICT Laboratory, NICT ▶

Project Organization

Project Team Organization Chart

About This Project

MOONSHOT logo mark

Moonshot Research and Development Program is a program launched by the Cabinet Office(CAO) to promote high-risk and high-impact R&D aiming to achieve ambitious Moonshot Goals and solve issues facing future society.

JST logo mark

Moonshot Goal 6 "Realization of a fault-tolerant universal quantum computer that will revolutionize economy, industry, and security by 2050." is funded and supported by JST (The Japan Science and Technology Agency).