Subcarrier wave continuous-variable quantum key distribution with Gaussian modulation: composable security analysis

Subcarrier wave continuous-variable quantum key distribution with Gaussian modulation: composable security analysis

Автор: Goncharov Roman Konstantinovich, Kiselev Alexei Donislavovich, Samsonov Eduard Olegovich, Egorov Vladimir Ilyich

Журнал: Компьютерная оптика @computer-optics

Рубрика: Дифракционная оптика, оптические технологии

Статья в выпуске: 3 т.47, 2023 года.

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In this paper, we continue the study of the quantum cryptographic GG02 protocol, performed using the approach based on the subcarrier waves. We modify the scheme via heterodyne detection and perform security analysis for the full trusted hardware noise model in the presence of collective attacks with finite-key effects. It is shown that the system can potentially distribute the key even if the level of losses in the channel is above 9 dB. This result is consistent with the general technical level and comply with modern standards of practical CV-QKD systems. Finally, the system under consideration fully meets the criterion of composability.

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Continuous variables, subcarrier waves, quantum key distribution

Короткий адрес: https://sciup.org/140300059

IDR: 140300059   |   DOI: 10.18287/2412-6179-CO-1225

Список литературы Subcarrier wave continuous-variable quantum key distribution with Gaussian modulation: composable security analysis

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