Pirandola, Stefano orcid.org/0000-0001-6165-5615 (2019) Bounds for multi-end communication over quantum networks. Quantum Sci. Technol.. 045006. pp. 1-16. ISSN 2058-9565
Abstract
Quantum and private communications are affected by a fundamental limitation which severely restricts the optimal rates that are achievable by two distant parties. To overcome this problem, one needs to introduce quantum repeaters and, more generally, quantum communication networks. Within a quantum network, other problems and features may appear when we move from the basic unicast setting of single-sender/single-receiver to more complex multi-end scenarios, where multiple senders and multiple receivers simultaneously use the network to communicate. Assuming various configurations, including multiple-unicast, multicast, and multiple-multicast communication, we bound the optimal rates for transmitting quantum information, distributing entanglement, or generating secret keys in quantum networks connected by arbitrary quantum channels. These bounds cannot be surpassed by the most general adaptive protocols of quantum network communication.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 IOP Publishing Ltd. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. |
Keywords: | quant-ph,cond-mat.other,math-ph,math.MP,physics.optics |
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: | 19 Sep 2019 11:10 |
Last Modified: | 16 Oct 2024 16:02 |
Published Version: | https://doi.org/10.1088/2058-9565/ab3f66 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1088/2058-9565/ab3f66 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:150931 |