One-sided device-independent random number generation through fiber channels
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 rando...
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| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Publishing Group
2025-01-01
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| Series: | Light: Science & Applications |
| Online Access: | https://doi.org/10.1038/s41377-024-01641-9 |
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| _version_ | 1841559070038818816 |
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| author | Jinfang Zhang Yi Li Mengyu Zhao Dongmei Han Jun Liu Meihong Wang Qihuang Gong Yu Xiang Qiongyi He Xiaolong Su |
| author_facet | Jinfang Zhang Yi Li Mengyu Zhao Dongmei Han Jun Liu Meihong Wang Qihuang Gong Yu Xiang Qiongyi He Xiaolong Su |
| author_sort | Jinfang Zhang |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-6ae66d57f1dc421a9d0daf77637efa1d |
| institution | Kabale University |
| issn | 2047-7538 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Publishing Group |
| record_format | Article |
| series | Light: Science & Applications |
| spelling | doaj-art-6ae66d57f1dc421a9d0daf77637efa1d2025-01-05T12:46:47ZengNature Publishing GroupLight: Science & Applications2047-75382025-01-011411910.1038/s41377-024-01641-9One-sided device-independent random number generation through fiber channelsJinfang Zhang0Yi Li1Mengyu Zhao2Dongmei Han3Jun Liu4Meihong Wang5Qihuang Gong6Yu Xiang7Qiongyi He8Xiaolong Su9State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi UniversityState Key Laboratory for Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics, & Collaborative Innovation Center of Quantum Matter, Peking UniversityState Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi UniversityState Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi UniversityState Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi UniversityState Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi UniversityState Key Laboratory for Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics, & Collaborative Innovation Center of Quantum Matter, Peking UniversityState Key Laboratory for Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics, & Collaborative Innovation Center of Quantum Matter, Peking UniversityState Key Laboratory for Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics, & Collaborative Innovation Center of Quantum Matter, Peking UniversityState Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi UniversityAbstract 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.https://doi.org/10.1038/s41377-024-01641-9 |
| spellingShingle | Jinfang Zhang Yi Li Mengyu Zhao Dongmei Han Jun Liu Meihong Wang Qihuang Gong Yu Xiang Qiongyi He Xiaolong Su One-sided device-independent random number generation through fiber channels Light: Science & Applications |
| title | One-sided device-independent random number generation through fiber channels |
| title_full | One-sided device-independent random number generation through fiber channels |
| title_fullStr | One-sided device-independent random number generation through fiber channels |
| title_full_unstemmed | One-sided device-independent random number generation through fiber channels |
| title_short | One-sided device-independent random number generation through fiber channels |
| title_sort | one sided device independent random number generation through fiber channels |
| url | https://doi.org/10.1038/s41377-024-01641-9 |
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