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5. 量子密码系统相关模块

5、研发量子密码系统相关模块

主要研究内容

量子随机数发生器和单光子探测器是量子密码系统直接相关的核心模块，又可作为独立器件或仪器在其他领域使用。在量子随机数发生器方面，研究组首次提出半设备无关量子随机数方案并分析了其一系列基本性质，提出并实现了基于随机源时间分辨的鲁棒型随机数发生器；在单光子探测器方面，研究组发现高速探测系统中后脉冲产生的原因，提出并设计有效降低高速单光子探测器后脉冲的方法。

代表性工作

H.-W. Li, Z.-Q. Yin, M. Pawlowski, G.-C. Guo, and Z.-F. Han, "Detection efficiency and noise in a semi-device-independent randomness-extraction protocol," Physical Review A 91, 032305 (2015).
H.-W. Li, P. Mironowicz, M. Pawlowski, Z.-Q. Yin, Y.-C. Wu, S. Wang, W. Chen, H.-G. Hu, G.-C. Guo, and Z.-F. Han, "Relationship between semi- and fully-device-independent protocols," Physical Review A 87, 020302 (2013).
H.-W. Li, Z.-Q. Yin, Y.-C. Wu, X.-B. Zou, S. Wang, W. Chen, G.-C. Guo, and Z.-F. Han, "Semi-device-independent random-number expansion without entanglement," Physical Review A 84, 034301 (2011).
F. Wang, C. Wang, W. Chen, S. Wang, F. Lv, D. He, Z. Yin, H. Li, G. Guo, and Z. Han, "Robust quantum random number generator based on avalanche photodiodes," Journal of Lightwave Technology 33, 3319 (2015).
D. Y. He, S. Wang, W. Chen, Z. –Q Yin, Y. –J Qian, Z. Zhou, G. –C Guo, and Z. -F. Han, “Sine-wave gating InGaAs/InP single photon detector with ultralow afterpulse,”Applied Physics Letters, 110, 111104(2017).