One-sided device-independent random number generation through fiber channels

Jinfang Zhang; Yi Li; Mengyu Zhao; Dongmei Han; Jun Liu; Meihong Wang; Qihuang Gong; Yu Xiang; Qiongyi He; Xiaolong Su

doi:10.1038/s41377-024-01641-9

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One-sided device-independent random number generation through fiber channels

Original Articles

- One-sided device-independent random number generation through fiber channels
- One-sided device-independent random number generation through fiber channels
- LSA 2025年14卷第1期页码：206-214
- Affiliations：
  
  1.State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China
  2.State Key Laboratory for Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics, & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing 100871, China
  3.Beijing Academy of Quantum Information Sciences, Beijing 100193, China
  4.Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
  5.Peking University Yangtze Delta Institute of Optoelectronics, Nantong, Jiangsu 226010, China
  6.Hefei National Laboratory, Hefei 230088, China
- Author bio：
  
  Yu Xiang (xiangy.phy@pku.edu.cn)
  Xiaolong Su (suxl@sxu.edu.cn)
- Funds：
- DOI：10.1038/s41377-024-01641-9
  中图分类号：
- 纸质出版日期：2025-01-31，
  
  网络出版日期：2025-01-03，
  
  收稿日期：2024-07-02，
  
  修回日期：2024-09-03，
  
  录用日期：2024-09-14
- Accepted：
Scan QR Code
One-sided device-independent random number generation through fiber channels[J]. LSA, 2025,14(1):206-214.

Zhang, J. F. et al. One-sided device-independent random number generation through fiber channels. Light: Science & Applications, 14, 206-214 (2025).
One-sided device-independent random number generation through fiber channels[J]. LSA, 2025,14(1):206-214. DOI： 10.1038/s41377-024-01641-9.

Zhang, J. F. et al. One-sided device-independent random number generation through fiber channels. Light: Science & Applications, 14, 206-214 (2025). DOI： 10.1038/s41377-024-01641-9.

摘要

Abstract

Randomness is an essential resource and plays important roles in various applications ranging from cryptography to simulation of complex systems. Certified randomness from quantum process is ensured to have the element of privacy but usually relies on the device's behavior. To certify randomness without the characterization for device

it is crucial to realize the one-sided device-independent random number generation based on quantum steering

which guarantees security of randomness and relaxes the demands of one party's device. Here

we distribute quantum steering between two distant users through a 2 km fiber channel and generate quantum random numbers at the remote station with untrustworthy device. We certify the steering-based randomness by reconstructing covariance matrix of the Gaussian entangled state shared between distant parties. Then

the quantum random numbers with a generation rate of 7.06 Mbits/s are extracted from the measured amplitude quadrature fluctuation of the state owned by the remote party. Our results demonstrate the first realization of steering-based random numbers extraction in a practical fiber channel

which paves the way to the quantum random numbers generation in asymmetric networks.

关键词

Keywords

references

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