Quantum error correction

The research team led by Academician Yu Dapeng and Xu Yuan from Shenzhen International Quantum Research Institute, together with teams such as Zheng Shibiao from Fuzhou University and Sun Luyan from Tsinghua University, has made significant breakthroughs in the field of quantum error correction based on superconducting quantum circuit systems. The joint team has extended the storage time of quantum information through real-time repetitive quantum error correction technology, surpassing the break even point by 16% for the first time internationally, demonstrating the advantages of quantum error correction. This milestone breakthrough represents a crucial step towards practical, scalable, and universal quantum computing. The relevant research results were published in Nature on March 23, 2023, and were selected for the "Top Ten Scientific Advances in China in 2023" list by the National Natural Science Foundation of China on February 29, 2024.

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

Errors in quantum computing: Superconducting qubits are highly susceptible to external noise interference, and even a small amount of noise can alter the state of the qubits; The superposition and entanglement characteristics of quantum bits, as well as the accumulation of operational errors, make quantum bits prone to information deviation. Quantum error correction: Once a quantum computer encounters an error during operation, it must promptly detect the specific error and repair it in a timely manner. This process is called quantum error correction. Quantum error correction is a necessary condition for the practical application of quantum computers. The field of quantum error correction has surpassed the break even point for the first time: Academician Yu Dapeng's team and Xu Yuan's research group from Southern University of Science and Technology, together with teams such as Zheng Shibiao from Fuzhou University and Sun Luyan from Tsinghua University, have made significant experimental breakthroughs in the field of quantum error correction based on superconducting quantum circuit systems. The joint team has extended the storage time of quantum information through real-time repetitive quantum error correction technology, surpassing the break even point for the first time internationally.