科研体系

1、实现新型量子密码协议


主要研究内容：

新型量子密码协议为量子保密通信的实际应用提供了新的可能途径。实现新型协议，研究其实际应用前景可以加深对量子保密过程的认识，扩大量子密钥分配系统的适用范围，增强系统的实际安全性，为量子密钥分配系统的实用化奠定基础。

研究组先后实现高速（2GHz）长距离（260公里）光纤量子密钥分配实验，无需扰动监测的环回差分相位量子密钥分配实验，参考系无关的测量设备无关量子密钥分配实验等等，有效推进了新型量子密钥分配技术的实用化发展。

代表性工作：

1. S. Wang, Z.-Q. Yin, W. Chen, D.-Y. He, X.-T. Song, H.-W. Li, L.-J. Zhang, Z. Zhou, G.-C. Guo, and Z.-F. Han, "Experimental demonstration of a quantum key distribution without signal disturbance monitoring," Nature Photonics 9, 832 (2015).
2. C. Wang, X.-T. Song, Z.-Q. Yin, S. Wang, W. Chen, C.-M. Zhang, G.-C. Guo, and Z.-F. Han, "Phase-reference-free experiment of measurement-device-independent quantum key distribution," Physical Review Letters 115, 160502 (2015).
3. C. Wang, Z.-Q. Yin, S. Wang, W. Chen, G.-C. Guo, and Z.-F. Han, "Measurement-device-independent quantum key distribution robust against environment disturbances," Optica 4, 1016 (2017).
4. C. Wang, S. Wang, Z.-Q. Yin, W. Chen, H.-W. Li, C.-M. Zhang, Y.-Y. Ding, G.-C. Guo, and Z.-F. Han, "Experimental measurement-device-independent quantum key distribution with uncharacterized encoding," Optics Letters 41, 5596 (2016).
5. S. Wang, W. Chen, J.-F. Guo, Z.-Q. Yin, H.-W. Li, Z. Zhou, G.-C. Guo, and Z.-F. Han, "2 GHz clock quantum key distribution over 260 km of standard telecom fiber," Optics Letters 37, 1008 (2012).

联系人：陈巍 weich@ustc.edu.cn 电话：0551-63600808-8208