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Security Analysis of Discrete-Modulated Continuous-Variable Quantum Key Distribution over Seawater Channel
Open AccessArticle

Performance Analysis of the Shore-to-Reef Atmospheric Continuous-Variable Quantum Key Distribution

1
Henan Key Laboratory of Quantum Information and Cryptography, SSF IEU, Zhengzhou 450001, China
2
SSF IEU, Zhengzhou 450001, China
3
Fujian Chengyi College, Jimei University, Xiamen 361021, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(24), 5285; https://doi.org/10.3390/app9245285
Received: 30 October 2019 / Revised: 26 November 2019 / Accepted: 3 December 2019 / Published: 4 December 2019
(This article belongs to the Special Issue Quantum Communications and Quantum Networks)
The effects of sea salt concluded in oceanic atmosphere are ubiquitous in practical wireless optical links. Here a shore-to-reef atmospheric continuous-variable quantum key distribution (CVQKD) model is established on the basis of Mie scattering theory, with the aim to characterize the complex case of beam propagation in the atmosphere caused by sea salt particles. The effects on performance of shore-to-reef atmospheric CVQKD under the sea salt particles and relative humidity are also studied. Simulation results show that the increase of particle radius and relative humidity will lead to the degeneration of secret key rate. Extending the channel distance also reduces the secret key rate. This paper provides a basis for the establishment of practical shore-to-reef atmospheric CVQKD model. The research of this paper also gives momentous reference for the study of optical communication channel models with other suspended particles over the ocean.
Keywords: sea salt particles; relative humidity; atmospheric CVQKD; secret key rate sea salt particles; relative humidity; atmospheric CVQKD; secret key rate
MDPI and ACS Style

Zhang, S.; Xiao, C.; Zhou, C.; Wang, X.; Yao, J.; Zhang, H.; Bao, W. Performance Analysis of the Shore-to-Reef Atmospheric Continuous-Variable Quantum Key Distribution. Appl. Sci. 2019, 9, 5285.

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