我国量子纠错研究取得新进展

Core Viewpoint - The research team at the University of Science and Technology of China has made significant progress in quantum error correction using the superconducting quantum processor "Zuchongzhi 3.2," establishing a foundation for practical quantum computing [1][2]. Group 1: Quantum Processor Development - The "Zuchongzhi 3.2" quantum processor, based on 107 qubits, has achieved a new "full microwave quantum state leakage suppression architecture" [1]. - Performance improvements in single-qubit and two-qubit gate manipulation accuracy and readout fidelity have been observed compared to previous generations [1]. - The research team successfully demonstrated a surface code logical qubit with a code distance of 7, where the logical error rate significantly decreases as the code distance increases, proving operation below the error correction threshold [1]. Group 2: Importance of Quantum Error Correction - Achieving "below threshold" quantum error correction is a long-sought core goal in the global quantum computing field and a key milestone for transitioning quantum computing systems from prototypes to practical applications [2]. - This new technological approach provides a more advantageous solution for constructing million-qubit quantum computers in the future [2].