Pirandola, Stefano orcid.org/0000-0001-6165-5615, Laurenza, Riccardo and Banchi, Leonardo (2019) Conditional channel simulation. Annals of Physics. pp. 289-302. ISSN 0003-4916
Abstract
In this work we design a specific simulation tool for quantum channels which is based on the use of a control system. This allows us to simulate an average quantum channel which is expressed in terms of an ensemble of channels, even when these channel-components are not jointly teleportation-covariant. This design is also extended to asymptotic simulations, continuous ensembles, and memory channels. As an application, we derive relative-entropy-of-entanglement upper bounds for private communication over various channels, from the amplitude damping channel to non-Gaussian mixtures of bosonic lossy channels. Among other results, we also establish the two-way quantum and private capacity of the so-called `dephrasure' channel.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | 8 pages. 1 figure. Comments are welcome © 2018 Elsevier Inc. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. |
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: | 13 Dec 2018 12:00 |
Last Modified: | 16 Oct 2024 15:19 |
Published Version: | https://doi.org/10.1016/j.aop.2018.11.014 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1016/j.aop.2018.11.014 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:139974 |