University of Science and Technology of China

Milestones

• China's Zuchongzhi 3.2 runs error correction below the surface-code threshold (Dec 22, 2025)
• China's Jiuzhang 4.0 reports photonic quantum advantage with up to 3,050 photons (Aug 12, 2025)
• China's 105-qubit Zuchongzhi 3.0 claims a larger quantum advantage (Mar 3, 2025)
• Chinese team reports quantum advantage on its Zuchongzhi superconducting chip (Jun 2021)
• Chinese team claims quantum advantage with Jiuzhang, a machine that uses light (Dec 3, 2020)