Fujitsu and RIKEN Unveil 256-Qubit Superconducting Quantum Computer

Fujitsu and RIKEN reveal a world-leading 256-qubit superconducting quantum computer at RIKEN's Center for Quantum Computing in Wako, Japan — a four-fold increase from their previous 64-qubit system — using a scalable 3D chip architecture. The system becomes available to researchers via Fujitsu's hybrid quantum computing platform in Q1 FY2025. A 1,000-qubit system is planned for 2026, positioning Japan as a major player in the global quantum hardware race.