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564 results on '"Han, Zhiyong"'

8. A preliminary integrated analysis of regional paleoclimate variations in China over the past ∼ 21 ka

Author

Lu, Huayu, Zhao, Yan, Yang, Xiangdong, Wu, Haibing, Zhao, Cheng, Wang, Jingjing, Wang, Xiaoyong, Kuang, Xueyuan, Zhang, Xiaojian, Ma, Chunmei, Lu, Fuzhi, Xiao, Xiayun, Zhang, Wenchao, Wang, Hanlin, Xu, Zhiwei, Cheng, Jun, Zheng, Zhuo, Shi, Feng, Zhang, Enlou, Liang, Chen, Huang, Zhenghui, Liang, Chenghong, Yi, Shuangwen, Wu, Jiang, Shao, Kehan, Gu, Yao, Zhang, Hongyan, Li, Xusheng, Han, Zhiyong, Wang, Xianyan, Wang, Sumin, and Guo, Zhengtang

Published
2024
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17. Field Test of Twin-Field Quantum Key Distribution through Sending-or-Not-Sending over 428 km

Author

Liu, Hui, Jiang, Cong, Zhu, Hao-Tao, Zou, Mi, Yu, Zong-Wen, Hu, Xiao-Long, Xu, Hai, Ma, Shizhao, Han, Zhiyong, Chen, Jiu-Peng, Dai, Yunqi, Tang, Shi-Biao, Zhang, Weijun, Li, Hao, You, Lixing, Wang, Zhen, Zhou, Fei, Zhang, Qiang, Wang, Xiang-Bin, Chen, Teng-Yun, and Pan, Jian-Wei

Subjects
Quantum Physics
Abstract

Quantum key distribution endows people with information-theoretical security in communications. Twin-field quantum key distribution (TF-QKD) has attracted considerable attention because of its outstanding key rates over long distances. Recently, several demonstrations of TF-QKD have been realized. Nevertheless, those experiments are implemented in the laboratory, remaining a critical question about whether the TF-QKD is feasible in real-world circumstances. Here, by adopting the sending-or-not-sending twin-field QKD (SNS-TF-QKD) with the method of actively odd parity pairing (AOPP), we demonstrate a field-test QKD over 428~km deployed commercial fiber and two users are physically separated by about 300~km in a straight line. To this end, we explicitly measure the relevant properties of the deployed fiber and develop a carefully designed system with high stability. The secure key rate we achieved breaks the absolute key rate limit of repeater-less QKD. The result provides a new distance record for the field test of both TF-QKD and all types of fiber-based QKD systems. Our work bridges the gap of QKD between laboratory demonstrations and practical applications, and paves the way for intercity QKD network with high-speed and measurement-device-independent security.

Published
2021
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18. Research on Dynamic Impact Force Calculation for Spline Coupling Teeth and Its Suppression

Author

Pan, Wenchao, Lan, Hai, Han, Zhiyong, Yang, Lantao, Wang, Liming, Shao, Yimin, Ceccarelli, Marco, Series Editor, Agrawal, Sunil K., Advisory Editor, Corves, Burkhard, Advisory Editor, Glazunov, Victor, Advisory Editor, Hernández, Alfonso, Advisory Editor, Huang, Tian, Advisory Editor, Jauregui Correa, Juan Carlos, Advisory Editor, Takeda, Yukio, Advisory Editor, Zhang, Hao, editor, Feng, Guojin, editor, Wang, Hongjun, editor, Gu, Fengshou, editor, and Sinha, Jyoti K., editor

Published
2023
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