4x increase in qubits on Fujitsu and RIKEN's hybrid quantum computing platform to expand computational capabilities

KAWASAKI and WAKO, Japan, April 22, 2025 /PRNewswire/ -- Fujitsu Limited and RIKEN today announced the development of a world-leading 256-qubit superconducting quantum computer, established at the RIKEN RQC-FUJITSU Collaboration Center. This new quantum computer builds upon the advanced technology of the 64-qubit iteration, launched with the support of the Japanese Ministry of Education, Culture, Sports, Science and Technology in October 2023, and incorporates newly-developed high-density implementation techniques. This announcement marks another crucial step toward the practical application of superconducting quantum computers and unlocking their potential to grapple with some of the world's most complex issues.

Both organizations will integrate the 256-qubit superconducting quantum computer into its platform for hybrid quantum computing lineup and offer it to companies and research institutions globally starting in the first quarter of fiscal 2025. The platform's expansion from 64 to 256 qubits empowers users to tackle more complex challenges, including the analysis of larger molecules and the implementation and demonstration of sophisticated error correction algorithms.

Moving forward, both organizations will further enhance the platform's usability by working to enable seamless collaboration between quantum and classical computers, enabling the efficient execution of hybrid quantum-classical algorithms.

Fujitsu and RIKEN's 256-qubit superconducting quantum computer overcomes some key technical challenges, including appropriate cooling within the dilution refrigerator which is achieved through the incorporation of high-density implementation and cutting-edge thermal design.

Fujitsu is committed to accelerating the practical application of quantum computers from both hardware and software perspectives. Through its platform for hybrid quantum computing, Fujitsu will provide larger-scale quantum computers to global companies and research institutions conducting joint research in various fields, including finance and drug discovery.

Fujitsu and RIKEN will continue R&D efforts toward the launch of a 1,000-qubit computer, which is scheduled to be installed in a new building at Fujitsu Technology Park in 2026. In addition, the two organizations will extend the installation period of their Collaboration Center from March 2025 to March 2029, and will continue to work on the long-term R&D of technologies that will enable the realization of even larger superconducting quantum computers.

For full release click here:https://www.fujitsu.com/global/about/resources/news/press-releases/2025/0422-01.html

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