Japan Unveils Domestically Made Quantum Computer

Researchers from the Center for Quantum Information and Quantum Biology (QIQB) at the University of Osaka, Japan, recently unveiled a superconducting quantum computer designed and assembled using local software and hardware. Going live on July 28, the quantum computer marks a significant step in Japan’s quest for self-reliance in the emerging quantum computing sector and serves as a showcase of the country’s technological expertise. 

The domestically built and designed superconducting computer will be available for public interaction at Expo 2025 in Osaka, Kansai, Japan. 

The project was led by the Center for Quantum Information and Quantum Biology alongside several major Japanese firms, including Systems Engineering Consultants, Fujitsu Limited, QunaSys Inc., Ulvac Cryogenics Inc., and QuEL Inc. Unlike previous quantum computing projects that relied on imported components such as pulse tube refrigerators and dilution refrigerators, the QIQB initiative used only domestically sourced parts. 

Additionally, all the software for the project is open source, locally developed, and built on the Open Quantum Toolchain for OPerators & USers (OQTOPUS), created in Japan by Fujitsu and several other research partners. 

The QIQB project highlights Japan’s comprehensive mastery of the diverse technologies required to manufacture and integrate quantum computers using locally sourced resources. Although quantum computing remains in its early stages, the technology has the potential to accelerate the development of new medicines and materials, mitigate environmental damage, and optimize complex systems. The domestically designed and built superconducting quantum computer will be showcased at Expo 2025, Osaka, from August 14 to 20. Visitors of all technical backgrounds will be able to access the quantum computer via the cloud, run simple programs, and experience firsthand what it is like to use Japan’s first locally developed quantum computer. 

Japan now joins a select group of countries capable of developing quantum computing components and integrating them into fully functioning systems. The result of extensive collaboration among several companies and research partners, the superconducting computer features cloud software, control electronics, integrated cryogenics, and superconducting qubit fabrication, all designed and built within the country. 

The open-source OQTOPUS software covers the system’s user interface, error mitigation, system control, and cloud orchestration tools, ensuring this and future projects have access to the transparent software support needed to effectively run quantum operations. 

This milestone strengthens Japan’s position as a serious contender in the global quantum computing race. By achieving technological self-sufficiency, Japan is not only securing its supply chains but also building a foundation for future innovation in both industry and academia. The integration of homegrown hardware and open-source software creates a sustainable, adaptable platform that can support scientific research, commercial applications, and public engagement, positioning the nation to shape the trajectory of quantum technology for decades to come. 

As Japan marks its entry into the quantum computing space, it joins many countries and companies like D-Wave Quantum Inc. (NYSE: QBTS) that have also made progress in developing systems and equipment advancing quantum computing into useable solutions. 

NOTE TO INVESTORS: The latest news and updates relating to D-Wave Quantum Inc. (NYSE: QBTS) are available in the company’s newsroom at https://ibn.fm/QBTS 

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