Papanastasiou, Panagiotis, Ottaviani, Carlo orcid.org/0000-0002-0032-3999 and Pirandola, Stefano orcid.org/0000-0001-6165-5615 (2018) Gaussian one-way thermal quantum cryptography with finite-size effects. Physical Review A. 032314. pp. 1-9. ISSN 1094-1622
Abstract
We study the impact of finite-size effects on the security of thermal one-way quantum cryptography. Our approach considers coherent/squeezed states at the preparation stage, on the top of which the sender adds trusted thermal noise. We compute the key rate incorporating finite-size effects, and we obtain the security threshold at different frequencies. As expected finite-size effects deteriorate the performance of thermal quantum cryptography. Our analysis is useful to quantify the impact of this degradation on relevant parameters like tolerable attenuation, transmission frequencies at which one can achieve security.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | ©2018 American Physical Society. 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. REVTeX. 9 pages, 4 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: | 18 Sep 2018 14:00 |
Last Modified: | 16 Dec 2024 00:09 |
Published Version: | https://doi.org/10.1103/PhysRevA.98.032314 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevA.98.032314 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:135657 |