Ghalaii, M. orcid.org/0000-0002-4242-8748 and Pirandola, S. (2023) Continuous-variable measurement-device-independent quantum key distribution in free-space channels. Physical Review A, 108 (4). 042621. ISSN 2469-9926
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 quantum key distribution in a measurement-device-independent configuration over free-space optical links. We assess the turbulence regime and provide a composable finite-size key rate analysis of the protocol for such links. We study both short-range, horizontal communication links as well as slant paths to, e.g., high-altitude platform station systems.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | ©2023 American Physical Society. This is an open access article under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 05 Jan 2024 14:33 |
Last Modified: | 05 Jan 2024 14:33 |
Published Version: | http://dx.doi.org/10.1103/physreva.108.042621 |
Status: | Published |
Publisher: | American Physical Society |
Identification Number: | 10.1103/physreva.108.042621 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:206764 |