首次！潘建伟院士领衔，量子科技再获里程碑式重大突破

Core Insights - The research team from the University of Science and Technology of China has achieved significant breakthroughs in quantum communication technology, specifically in scalable quantum repeaters and long-lived quantum entanglement [1][2] - The team successfully demonstrated high-fidelity entanglement between single atom nodes over long distances and achieved a milestone in device-independent quantum key distribution (DI-QKD) by surpassing a transmission distance of 100 kilometers [1][2] Group 1 - The research team developed a long-lived ion-trapped quantum memory, efficient ion-photon communication interfaces, and high-fidelity single-photon entanglement protocols, resulting in a quantum entanglement lifetime of 550 milliseconds, which exceeds the entanglement establishment time of 450 milliseconds [2] - The successful construction of a basic module for scalable quantum repeaters makes long-distance quantum networks a feasible reality [2] - The achievement marks a significant advancement, improving the previous best experimental level by over two orders of magnitude in DI-QKD transmission distance [2] Group 2 - Academician Pan Jianwei stated that this breakthrough represents another milestone for China following the "Mozi" quantum satellite, indicating that fiber-based quantum networks are transitioning from theoretical concepts to practical possibilities [2] - The advancements further enhance China's international leading position in the field of quantum technology [2]