Fujitsu and RIKEN develop world-leading 256-qubit sup quantum computer

Fujitsu and RIKEN develop world-leading 256-qubit superconducting quantum computer 4x increase in qubits on Fujitsu and RIKEN’s hybrid quantum computing platform to expand computational capabilities Fujitsu Limited RIKEN Kawasaki and Wako, Japan, April 22, 2025 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 (MEXT)(1) 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 supercon ... Read full article.