China closes a quantum computing supply gap by mass-producing silicon-28
China National Nuclear Corporation's Tianjin-based research institute achieved the country's first independent, large-scale production of silicon-28 isotope at 99.99 percent purity, closing a critical materials gap in quantum computing. Previously, production capabilities were concentrated among overseas suppliers in Russia, Europe, and US-linked supply chains. The breakthrough comes as both China and Western firms race to secure independent access to the material at the heart of silicon-based q