Ghalaii, Masoud, Ottaviani, Carlo orcid.org/0000-0002-0032-3999, Kumar, Rupesh et al. (2 more authors) (2020) Discrete-modulation continuous-variable quantum key distribution enhanced by quantum scissors. IEEE Journal on Selected Areas in Communication. pp. 506-516. ISSN 1558-0008
Abstract
It is known that quantum scissors, as non-deterministic amplifiers, can enhance the performance of Gaussian-modulated continuous-variable quantum key distribution (CV-QKD) in noisy and long-distance regimes of operation. Here, we extend this result to a {\em non-Gaussian} CV-QKD protocol with discrete modulation. We show that, by using a proper setting, the use of quantum scissors in the receiver of such discrete-modulation CV-QKD protocols would allow us to achieve positive secret key rates at high loss and high excess noise regimes of operation, which would have been otherwise impossible. This also keeps the prospect of running discrete-modulation CV-QKD over CV quantum repeaters alive.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details. |
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) The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 07 Jan 2020 15:40 |
Last Modified: | 08 Feb 2025 00:36 |
Published Version: | https://doi.org/10.1109/JSAC.2020.2969058 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1109/JSAC.2020.2969058 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:155348 |
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