(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
Main Authors Li, Zan-Jia, He, Ying-Qiu, Ding, Dong, Yu, Ming-Xing, Gao, Ting, Yan, Feng-Li
Format Journal Article
LanguageEnglish
Published 02.04.2024
Subjects
Physics - Quantum Physics
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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.
DOI:10.48550/arxiv.2404.01960