Improving length estimation of the secret key in satellite-to-ground quantum channel

封面

如何引用文章

全文:

开放存取 开放存取
受限制的访问 ##reader.subscriptionAccessGranted##
受限制的访问 订阅或者付费存取

详细

We study and optimize the length of the secret sequence depending on the intervals of splitting the communication session between the satellite and the ground station during the quantum key distribution. Due to dynamically changing channel parameters, the proposed technique allows for significant increases in the final key rate and length.

全文:

受限制的访问

作者简介

Е. Ivchenko

Moscow Institute of Physics and Technology; International Center for Quantum Optics and Quantum Technologies; QSpace Technologies LLC; MISIS National University of Science and Technology

编辑信件的主要联系方式.
Email: ivchenko.ei@phystech.edu
俄罗斯联邦, Dolgoprudny; Moscow; Moscow; Moscow

A. Khmelev

Moscow Institute of Physics and Technology; International Center for Quantum Optics and Quantum Technologies; QSpace Technologies LLC

Email: ivchenko.ei@phystech.edu
俄罗斯联邦, Dolgoprudny; Moscow; Moscow

V. Kurochkin

Moscow Institute of Physics and Technology; International Center for Quantum Optics and Quantum Technologies; QSpace Technologies LLC; MISIS National University of Science and Technology

Email: ivchenko.ei@phystech.edu
俄罗斯联邦, Dolgoprudny; Moscow; Moscow; Moscow

参考

  1. Gisin N., Ribordy G., Tittel W., Zbinden H. // Rev. Mod. Phys. 2002. V. 74. No. 1. P. 145.
  2. Кронберг Д.А., Ожигов Ю.И., Чернявский А.Ю. Квантовая информатика и квантовый компьютер: учебное пособие. М.: МАКС Пресс, 2011. 64 с.
  3. Bennett C.H., Brassard G. // arXiv:2003.06557. 2020.
  4. Shor P.W., Preskill J. // Phys. Rev. Lett. 2000. V. 85. No. 2. P. 441.
  5. Курочкин В.Л., Кривякин Г.К., Зверев А.В. и др. // Изв. РАН. Сер. физ. 2016. Т. 80. № 1. С. 10; Kurochkin V.L., Krivyakin G.K., Zverev A.V. et al. // Bull. Russ. Acad. Sci. Phys. 2016. V. 80. No. 1. P. 5.
  6. Курочкин В.Л., Неизвестный И.Г. // Изв. РАН. Сер. физ. 2015. Т. 79. № 2. С. 195; Kurochkin V.L., Neizvestnyj I.G. // Bull. Russ. Acad. Sci. Phys. 2015. V. 79. No. 2. P. 173.
  7. Lucamarini M., Yuan Z.L., Dynes J.F., Shields A.J. // Nature. 2018. V. 557. No. 7705. P. 400.
  8. Курочкин В.Л., Коляко А.В. // Изв. РАН. Сер. физ. 2016. Т. 80. № 1. С. 5; Kurochkin V.L., Kolyako A.V. // Bull. Russ. Acad. Sci. Phys. 2016. V. 80. No. 1. P. 1.
  9. Liao S.K., Cai W.Q., Liu W.Y. et al. // Nature. 2017. V. 549. No. 7670. P. 43.
  10. Khmelev A.V., Ivchenko E.I., Miller A.V. et al. // Entropy. 2023. V. 25. No. 4. Art. No. 670.
  11. Ma X., Qi B., Zhao Y., Lo H.K. // Phys. Rev. A. 2005. V. 72. No. 1. Art. No. 012326.

补充文件

附件文件
动作
1. JATS XML
下载
2. Fig. 1. Histograms of the dependence of the number of received clicks (a) and the percentage of quantum bit errors (QBER) in them (b) for the case of small fluctuations in the neighbourhood of the model averages

下载 (419KB)
索引源数据
3. Fig. 2. Histograms of the dependence of the number of received clicks (a) and the percentage of quantum bit errors (QBER) in them (b) for the case of significant fluctuations, which can be associated with the instability of the experimental equipment and bad weather conditions

下载 (332KB)
索引源数据
4. Fig. 3. Plots of the dependence of the final key length on the size of the segments of the session interval partitioning in the case of small fluctuations (a) and for large deviations (b) of the number of clicks from the theoretical average

下载 (167KB)
索引源数据

版权所有 © Russian Academy of Sciences, 2024