A research team at Osaka University's QIQB has proposed a scalable photonic routing architecture for ion trap quantum computers. By comparing two multi-wavelength laser delivery methods, they demonstrated a path to controlling hundreds to thousands of qubits on a single chip—potentially reshaping the future of trapped-ion quantum computing.

Japanese startup blueqat unveiled Japan's first domestic semiconductor quantum computer at SEMICON Japan 2025. Leveraging existing chip manufacturing technology, the company targets 1 million qubits by 2030 and commercial deployment in 2026. With relaxed temperature requirements compared to superconducting systems, desktop-sized quantum computers may become reality.