China’s latest quantum computers, Zuchongzhi 3.0 and Jiuzhang 4.0, have achieved massive quantum advantage. The 105-qubit superconducting Zuchongzhi 3.0 finished a random circuit sampling task in seconds that would take the fastest classical supercomputers billions of years, outperforming Google’s latest chips by millions of times. Jiuzhang 4.0, a photonic system using over 2,000 photons, solved […]