((n,m,p)\)-type quantum network configuration and its nonlocality

A quantum network shared entangled sources among distant nodes enables us to distribute entanglement along the network by suitable measurements. Network nonlocality means that it does not admit a network model involving local variables emitted from independent sources. In this work, we construct an...

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Bibliographic Details
Published inarXiv.org
Main Authors Zan-Jia, Li, Ying-Qiu, He, Ding, Dong, Ming-Xing, Yu, Gao, Ting, Feng-Li, Yan
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 02.04.2024
Subjects
Configurations
Independent variables
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Summary:A quantum network shared entangled sources among distant nodes enables us to distribute entanglement along the network by suitable measurements. Network nonlocality means that it does not admit a network model involving local variables emitted from independent sources. In this work, we construct an \((n,m,p)\)-type quantum network configuration and then derive the corresponding \(n\)-local correlation inequalities based on the assumption of independent sources. As a universal acyclic network configuration, it can cover most of the existing network models, such as the typical chain-network and star-network, and admit both centerless and asymmetric configurations. Then we demonstrate the non-\(n\)-locality of the present network by calculating the violation of the \(n\)-local inequality with bipartite entangled sources and Pauli measurements.
ISSN:2331-8422