Ghalaii, Masoud and Pirandola, Stefano orcid.org/0000-0001-6165-5615 (2023) Continuous-Variable Measurement-Device-Independent Quantum Key Distribution in Free-Space Channels. Physical Review A. 042621. ISSN 1094-1622
Abstract
The field of space communications is the realm of communication technologies where diffraction and atmospheric effects, both of which contribute to loss and noise, become overriding. The pertinent questions here are how and at which rate information (secret keys) can be securely transferred (shared) among users under such supposedly severe circumstances. In the present work we study continuous-variable (CV) quantum key distribution (QKD) in a measurement-device-independent (MDI) configuration over free-space optical (FSO) links. We assess the turbulence regime and provide a composable finite-size key rate analysis of the protocol for FSO links. We study both short-range, horizontal communication links as well as slant paths to, e.g., high-altitude platform station (HAPS) systems.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | 9 pages, 6 figures |
Keywords: | quant-ph |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Computer Science (York) |
Depositing User: | Pure (York) |
Date Deposited: | 27 Oct 2023 13:50 |
Last Modified: | 13 Jan 2025 00:09 |
Published Version: | https://doi.org/10.1103/PhysRevA.108.042621 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevA.108.042621 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:204661 |