Measurement-device-independent quantum random number generation over 23 Mbps with imperfect single-photon sources
文献类型：期刊论文
| 作者 | Nie,You-Qi3,4,5; Zhou,Hongyi2; Bai,Bing4,5; Xu,Qi4,5; Ma,Xiongfeng1; Zhang,Jun3,4,5; Pan,Jian-Wei3,4,5 |
| 刊名 | Quantum Science and Technology
 |
| 出版日期 | 2024-04-01 |
| 卷号 | 9期号:2 |
| 关键词 | quantum cryptography quantum random number generation measurement-device-independent measurement tomography |
| DOI | 10.1088/2058-9565/ad34f4 |
| 英文摘要 | 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. |
| 语种 | 英语 |
| WOS记录号 | IOP:QST_9_2_025024 |
| 出版者 | IOP Publishing |
| 源URL | [http://119.78.100.204/handle/2XEOYT63/38712]  |
| 专题 | 中国科学院计算技术研究所期刊论文_英文 |
| 通讯作者 | Ma,Xiongfeng; Zhang,Jun |
| 作者单位 | 1.Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, People’s Republic of China 2.Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China 3.Hefei National Laboratory, University of Science and Technology of China, Hefei 230088, People’s Republic of China 4.CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, People’s Republic of China 5.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 |
| 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). |
入库方式： OAI收割
来源：计算技术研究所
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