Discrete-Modulated Continuous-Variable Quantum Key Distribution in Satellite-to-Ground Communication

Fuente: arXiv
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Autori principali: Li, Shi-Gen, Li, Chen-Long, Liu, Wen-Bo, Yin, Hua-Lei, Chen, Zeng-Bing
Natura: Preprint
Pubblicazione: 2024
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author Li, Shi-Gen
Li, Chen-Long
Liu, Wen-Bo
Yin, Hua-Lei
Chen, Zeng-Bing
author_facet Li, Shi-Gen
Li, Chen-Long
Liu, Wen-Bo
Yin, Hua-Lei
Chen, Zeng-Bing
contents Satellite-to-ground quantum communication constitutes the cornerstone of the global quantum network, heralding the advent of the future of quantum information. Continuous-variable quantum key distribution is a strong candidate for space-ground quantum communication due to its simplicity, stability, and ease of implementation, especially for the robustness of space background light noise. Recently, the discrete-modulated continuous-variable protocol has garnered increased attention, owing to its lower implementation requirements, acceptable security key rate, and pronounced compatibility with extant infrastructures. Here, we derive key rates for discrete-modulated continuous-variable quantum key distribution protocols in free-space channel environments across various conditions through numerical simulation, revealing the viability of its application in satellite-to-ground communication.
format Preprint
id arxiv_https___arxiv_org_abs_2406_14166
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Discrete-Modulated Continuous-Variable Quantum Key Distribution in Satellite-to-Ground Communication
Li, Shi-Gen
Li, Chen-Long
Liu, Wen-Bo
Yin, Hua-Lei
Chen, Zeng-Bing
Quantum Physics
Satellite-to-ground quantum communication constitutes the cornerstone of the global quantum network, heralding the advent of the future of quantum information. Continuous-variable quantum key distribution is a strong candidate for space-ground quantum communication due to its simplicity, stability, and ease of implementation, especially for the robustness of space background light noise. Recently, the discrete-modulated continuous-variable protocol has garnered increased attention, owing to its lower implementation requirements, acceptable security key rate, and pronounced compatibility with extant infrastructures. Here, we derive key rates for discrete-modulated continuous-variable quantum key distribution protocols in free-space channel environments across various conditions through numerical simulation, revealing the viability of its application in satellite-to-ground communication.
title Discrete-Modulated Continuous-Variable Quantum Key Distribution in Satellite-to-Ground Communication
topic Quantum Physics
url https://arxiv.org/abs/2406.14166