Measurement-device-independent quantum random number generation over 23 Mbps with imperfect single-photon sources

doi:10.1088/2058-9565/ad34f4

CSpace

	Measurement-device-independent quantum random number generation over 23 Mbps with imperfect single-photon sources
	Nie,You-Qi 1,2,3; Zhou,Hongyi 4; Bai,Bing 1,2; Xu,Qi 1,2; Ma,Xiongfeng 5; Zhang,Jun 1,2,3; Pan,Jian-Wei 1,2,3
	2024-04-01
发表期刊	Quantum Science and Technology
卷号	9 期号:2
摘要	Abstract Quantum randomness relies heavily on the accurate characterization of the generator implementation, where the device imperfection or inaccurate characterization can lead to incorrect entropy estimation and practical bias, significantly affecting the reliability of the generated randomness. Measurement-device-independent (MDI) quantum random number generation (QRNG) endeavors to produce certified randomness, utilizing uncharacterized and untrusted measurement devices that are vulnerable to numerous attack schemes targeting measurement loopholes. However, existing implementations have shown insufficient performance thus far. Here, we propose a high-speed MDI-QRNG scheme based on a robust measurement tomography approach against the imperfection of single-photon sources. Compared with the conventional approach, the decoy-state method is introduced to obtain more accurate tomography results and a tighter lower bound of randomness. Finally, by using a high-speed time-bin encoding system, we experimentally demonstrated the scheme and obtained a reliable min-entropy lower bound of 7.37 × 10 ? 2 bits per pulse, corresponding to a generation rate over 23?Mbps, which substantially outperforms the existing realizations and makes a record in discrete-variable semi-device-independent QRNGs.
关键词	quantum cryptography quantum random number generation measurement-device-independent measurement tomography
DOI	10.1088/2058-9565/ad34f4
语种	英语
WOS记录号	IOP:qst_9_2_025024
出版者	IOP Publishing
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/38713
专题	中国科学院计算技术研究所
通讯作者	Ma,Xiongfeng; Zhang,Jun
作者单位	1.Hefei National Research Center for Physical Sciences at the Microscale and School of Physical Sciences, University of Science and Technology of China, Hefei 230026, People’s Republic of China 2.CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, People’s Republic of China 3.Hefei National Laboratory, University of Science and Technology of China, Hefei 230088, People’s Republic of China 4.Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China 5.Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, People’s Republic of China
推荐引用方式 GB/T 7714	Nie,You-Qi,Zhou,Hongyi,Bai,Bing,et al. Measurement-device-independent quantum random number generation over 23 Mbps with imperfect single-photon sources[J]. Quantum Science and Technology,2024,9(2).
APA	Nie,You-Qi.,Zhou,Hongyi.,Bai,Bing.,Xu,Qi.,Ma,Xiongfeng.,...&Pan,Jian-Wei.(2024).Measurement-device-independent quantum random number generation over 23 Mbps with imperfect single-photon sources.Quantum Science and Technology,9(2).
MLA	Nie,You-Qi,et al."Measurement-device-independent quantum random number generation over 23 Mbps with imperfect single-photon sources".Quantum Science and Technology 9.2(2024).