Intensity modulator for secure, stable, and high-performance decoy-state quantum key distribution
Abstract The decoy-state method substantially improves the performance of quantum key distribution (QKD) and perfectly solves crucial issues caused by multiphoton pulses. In recent years, the decoy-state method has occupied a key position in practicality, and almost all the QKD systems have employed...
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Nature Portfolio
2021
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oai:doaj.org-article:28ec468cad5f4262ba6ff2f1dd9d7fbc2021-12-02T15:52:48ZIntensity modulator for secure, stable, and high-performance decoy-state quantum key distribution10.1038/s41534-021-00418-x2056-6387https://doaj.org/article/28ec468cad5f4262ba6ff2f1dd9d7fbc2021-05-01T00:00:00Zhttps://doi.org/10.1038/s41534-021-00418-xhttps://doaj.org/toc/2056-6387Abstract The decoy-state method substantially improves the performance of quantum key distribution (QKD) and perfectly solves crucial issues caused by multiphoton pulses. In recent years, the decoy-state method has occupied a key position in practicality, and almost all the QKD systems have employed the decoy-state method. However, the imperfections of traditional intensity modulators limit the performance of the decoy-state method and bring side channels. In this work, a special intensity modulator and its accompanying modulation method are designed and experimentally verified for the secure, stable, and high-performance decoy-state QKDs. The experimental result indicates that its stable and adjustable intensities, convenient two-level modulation, inherently high speed, and compact structure is extremely fit for future trends and will help the decoy-state method to be perfectly applied to QKD systems.Feng-Yu LuXing LinShuang WangGuan-Jie Fan-YuanPeng YeRong WangZhen-Qiang YinDe-Yong HeWei ChenGuang-Can GuoZheng-Fu HanNature PortfolioarticlePhysicsQC1-999Electronic computers. Computer scienceQA75.5-76.95ENnpj Quantum Information, Vol 7, Iss 1, Pp 1-7 (2021) |
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Physics QC1-999 Electronic computers. Computer science QA75.5-76.95 |
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Physics QC1-999 Electronic computers. Computer science QA75.5-76.95 Feng-Yu Lu Xing Lin Shuang Wang Guan-Jie Fan-Yuan Peng Ye Rong Wang Zhen-Qiang Yin De-Yong He Wei Chen Guang-Can Guo Zheng-Fu Han Intensity modulator for secure, stable, and high-performance decoy-state quantum key distribution |
| description |
Abstract The decoy-state method substantially improves the performance of quantum key distribution (QKD) and perfectly solves crucial issues caused by multiphoton pulses. In recent years, the decoy-state method has occupied a key position in practicality, and almost all the QKD systems have employed the decoy-state method. However, the imperfections of traditional intensity modulators limit the performance of the decoy-state method and bring side channels. In this work, a special intensity modulator and its accompanying modulation method are designed and experimentally verified for the secure, stable, and high-performance decoy-state QKDs. The experimental result indicates that its stable and adjustable intensities, convenient two-level modulation, inherently high speed, and compact structure is extremely fit for future trends and will help the decoy-state method to be perfectly applied to QKD systems. |
| format |
article |
| author |
Feng-Yu Lu Xing Lin Shuang Wang Guan-Jie Fan-Yuan Peng Ye Rong Wang Zhen-Qiang Yin De-Yong He Wei Chen Guang-Can Guo Zheng-Fu Han |
| author_facet |
Feng-Yu Lu Xing Lin Shuang Wang Guan-Jie Fan-Yuan Peng Ye Rong Wang Zhen-Qiang Yin De-Yong He Wei Chen Guang-Can Guo Zheng-Fu Han |
| author_sort |
Feng-Yu Lu |
| title |
Intensity modulator for secure, stable, and high-performance decoy-state quantum key distribution |
| title_short |
Intensity modulator for secure, stable, and high-performance decoy-state quantum key distribution |
| title_full |
Intensity modulator for secure, stable, and high-performance decoy-state quantum key distribution |
| title_fullStr |
Intensity modulator for secure, stable, and high-performance decoy-state quantum key distribution |
| title_full_unstemmed |
Intensity modulator for secure, stable, and high-performance decoy-state quantum key distribution |
| title_sort |
intensity modulator for secure, stable, and high-performance decoy-state quantum key distribution |
| publisher |
Nature Portfolio |
| publishDate |
2021 |
| url |
https://doaj.org/article/28ec468cad5f4262ba6ff2f1dd9d7fbc |
| work_keys_str_mv |
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