Geodesic
Hybrid quantum communication protocol for fiber and atmosphere channel
Nanosistemy: fizika, himiâ, matematika, Tome 15 (2024) no. 5, pp. 654-657.

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In this paper, we explore a hybrid quantum communication protocol that operates concurrently over fiber optic and atmospheric channels. This new protocol addresses challenges in urban settings where laying optical fiber may be impractical or costly. By integrating the subcarrier wave (SCW) quantum key distribution (QKD) with phase coding, our approach enhances the flexibility and reliability of quantum communication systems. We have developed and tested an atmospheric optical module equipped with an auto-tuning system to ensure precise optical axis alignment, crucial for minimizing signal loss in turbulent environments. Experimental results demonstrate stable sifted key rates and low quantum bit error rate (QBER) across various channel lengths, confirming the efficacy of our hybrid protocol in securing communication over diverse transmission environments.
Keywords: free-space optics, quantum communication, quantum key distribution, atmosphere channel. 
@article{NANO_2024_15_5_a7,
     author = {Ilnur Z. Latypov and Vladimir V. Chistiakov and Maxim A. Fadeev and Danil V. Sulimov and Alexey K. Khalturinsky and Sergey M. Kynev and Vladimir I. Egorov},
     title = {Hybrid quantum communication protocol for fiber and atmosphere channel},
     journal = {Nanosistemy: fizika, himi\^a, matematika},
     pages = {654--657},
     publisher = {mathdoc},
     volume = {15},
     number = {5},
     year = {2024},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NANO_2024_15_5_a7/}
}
TY  - JOUR
AU  - Ilnur Z. Latypov
AU  - Vladimir V. Chistiakov
AU  - Maxim A. Fadeev
AU  - Danil V. Sulimov
AU  - Alexey K. Khalturinsky
AU  - Sergey M. Kynev
AU  - Vladimir I. Egorov
TI  - Hybrid quantum communication protocol for fiber and atmosphere channel
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%0 Journal Article
%A Ilnur Z. Latypov
%A Vladimir V. Chistiakov
%A Maxim A. Fadeev
%A Danil V. Sulimov
%A Alexey K. Khalturinsky
%A Sergey M. Kynev
%A Vladimir I. Egorov
%T Hybrid quantum communication protocol for fiber and atmosphere channel
%J Nanosistemy: fizika, himiâ, matematika
%D 2024
%P 654-657
%V 15
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NANO_2024_15_5_a7/
%G en
%F NANO_2024_15_5_a7
Ilnur Z. Latypov; Vladimir V. Chistiakov; Maxim A. Fadeev; Danil V. Sulimov; Alexey K. Khalturinsky; Sergey M. Kynev; Vladimir I. Egorov. Hybrid quantum communication protocol for fiber and atmosphere channel. Nanosistemy: fizika, himiâ, matematika, Tome 15 (2024) no. 5, pp. 654-657. http://geodesic.mathdoc.fr/item/NANO_2024_15_5_a7/