Free-space and Satellite-Based Quantum Communication: Principles, Implementations, and Challenges

Fuente: arXiv
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Hauptverfasser: Rozenman, Georgi Gary, Maslennikov, Alona, Gandelman, Sara P., Reches, Yuval, Delfan, Sahar, Kundu, Neel Kanth, Zhang, Leyi, Liu, Ruiqi
Format: Preprint
Veröffentlicht: 2026
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author Rozenman, Georgi Gary
Maslennikov, Alona
Gandelman, Sara P.
Reches, Yuval
Delfan, Sahar
Kundu, Neel Kanth
Zhang, Leyi
Liu, Ruiqi
author_facet Rozenman, Georgi Gary
Maslennikov, Alona
Gandelman, Sara P.
Reches, Yuval
Delfan, Sahar
Kundu, Neel Kanth
Zhang, Leyi
Liu, Ruiqi
contents Satellite-based quantum communications represent a critical advancement in the pursuit of secure, global-scale quantum networks. Leveraging the principles of quantum mechanics, these systems offer unparalleled security through Quantum Key Distribution (QKD) and other quantum communication protocols. This review provides a comprehensive overview of the current state of satellite-based quantum communications, focusing on the evolution from terrestrial to space-based systems. We explore the distinct advantages and challenges of discrete-variable (DV) and continuous-variable (CV) quantum communication technologies in the context of satellite deployments. The paper also discusses key milestones such as the successful implementation of quantum communication via the Micius satellite and outlines the primary challenges, including atmospheric turbulence and the development of quantum repeaters, that must be addressed to achieve a global quantum internet. This review aims to consolidate recent advancements in the field, providing insights and perspectives on the future directions and potential innovations that will drive the continued evolution of satellite-based quantum communications.
format Preprint
id arxiv_https___arxiv_org_abs_2602_01426
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Free-space and Satellite-Based Quantum Communication: Principles, Implementations, and Challenges
Rozenman, Georgi Gary
Maslennikov, Alona
Gandelman, Sara P.
Reches, Yuval
Delfan, Sahar
Kundu, Neel Kanth
Zhang, Leyi
Liu, Ruiqi
Quantum Physics
Cryptography and Security
Instrumentation and Detectors
Optics
Satellite-based quantum communications represent a critical advancement in the pursuit of secure, global-scale quantum networks. Leveraging the principles of quantum mechanics, these systems offer unparalleled security through Quantum Key Distribution (QKD) and other quantum communication protocols. This review provides a comprehensive overview of the current state of satellite-based quantum communications, focusing on the evolution from terrestrial to space-based systems. We explore the distinct advantages and challenges of discrete-variable (DV) and continuous-variable (CV) quantum communication technologies in the context of satellite deployments. The paper also discusses key milestones such as the successful implementation of quantum communication via the Micius satellite and outlines the primary challenges, including atmospheric turbulence and the development of quantum repeaters, that must be addressed to achieve a global quantum internet. This review aims to consolidate recent advancements in the field, providing insights and perspectives on the future directions and potential innovations that will drive the continued evolution of satellite-based quantum communications.
title Free-space and Satellite-Based Quantum Communication: Principles, Implementations, and Challenges
topic Quantum Physics
Cryptography and Security
Instrumentation and Detectors
Optics
url https://arxiv.org/abs/2602.01426