中国科学家建造了一台可缩放的量子中继器,将安全量子缠绕的距离延长11公里,使钥匙分布超过100公里,超过了以前的界限。 Chinese scientists built a scalable quantum repeater, extending secure quantum entanglement 11 km and enabling key distribution over 100 km—far beyond previous limits.

中国科技大学的中国科学家在量子联网方面取得了重大突破,展示了第一个可缩放量子中继器构件,使远距离量子缠绕在纤维上。 Chinese scientists at the University of Science and Technology of China have achieved a major breakthrough in quantum networking by demonstrating the first scalable quantum repeater building block, enabling long-distance quantum entanglement over fiber. 通过使用被困离子量子内存和高保真性协议,他们将纠分布扩展到11公里,与设备独立的量子密钥分布相比,距离远了3000倍,并且确认了安全的密钥生成超过100公里,超过了前两次数的记录. Using a trapped-ion quantum memory and high-fidelity protocols, they extended entanglement distribution to 11 kilometers with device-independent quantum key distribution—3,000 times farther than before—and confirmed secure key generation over 100 kilometers, surpassing previous records by more than two orders of magnitude. 这些进展标志着朝向实用和安全的量子通信网络迈出的关键一步。 These advances mark a critical step toward practical, secure quantum communication networks.