China Achieves Mass Production of Silicon-28 Isotope for Quantum Computing

• •China has achieved independent mass production of silicon-28 isotope for quantum computing.
• •The silicon-28 isotope has a purity of over 99.99%, reducing noise interference in qubits.
• •This breakthrough enhances China's self-reliance in advanced technology amid global competition.

On June 15, 2026, China National Nuclear Corporation (CNNC) announced the successful mass production of silicon-28 isotope with over 99.99% purity. This marks China's first independent large-scale production of this critical material, which is essential for quantum computing. The production capability previously relied on foreign entities, creating a gap in China's quantum technology supply chain. Silicon-28's stability reduces environmental noise interference, making it vital for the stability of qubits in quantum computers. This breakthrough is expected to enhance China's self-reliance in advanced technology fabrication. The research team aims to develop additional stable isotopes for various applications, including nuclear medicine and aerospace. The achievement is seen as a significant milestone in bolstering China's capabilities in frontier science and technology.