(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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Zusammenfassung: | 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. |
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DOI: | 10.48550/arxiv.2404.01960 |