Fujitsu and RIKEN unveil revolutionary 256-qubit superconducting quantum computer

In Japan, on April 21, 2025, Fujitsu Limited and RIKEN announced the development of a groundbreaking superconducting quantum computer with 256 qubits, significantly expanding their previous 64-qubit model created in October 2023. The upgrade results from new high-density implementation techniques and aims to enhance computational capabilities, allowing researchers and businesses to tackle increasingly complex challenges. The hybrid quantum computer is expected to be integrated into Fujitsu's platform and made available to companies and research institutions worldwide from the first quarter of fiscal 2025. The initiative represents a crucial step toward practical applications of quantum computing in fields such as finance and drug discovery. Fujitsu and RIKEN's collaboration in quantum technology began with support from Japan's Ministry of Education, Culture, Sports, Science and Technology and has focused on enhancing both hardware and software aspects of quantum computing. This latest advancement addresses key technical challenges, such as efficient cooling within the dilution refrigerator. The new model's capacity to implement sophisticated error correction algorithms and analyze larger molecules holds promise for advancements in various scientific fields. The launch is part of the organizations' broader vision to facilitate seamless integration between quantum and classical computers, enabling more efficient execution of hybrid algorithms. Looking forward, the teams will continue research and development efforts toward the goal of launching a more powerful 1,000-qubit computer, with plans for installation in a new building at Fujitsu Technology Park slated for 2026. Furthermore, to support long-term research, the installation period of their Collaboration Center has been extended from March 2025 to March 2029. This commitment to advancing superconducting quantum computers indicates Fujitsu and RIKEN’s determination to lead in this emerging technology sector and contribute to solving some of the world’s most complex issues through computational power. With the expansion of quantum computing capabilities, Fujitsu anticipates significant collaborations with global companies and institutions, particularly in areas that benefit from advanced computational analysis. As quantum approaches gain traction, the research community is increasingly excited about their potential which may catapult various sectors into new technological eras.