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

Autor: Li, Zan-Jia, He, Ying-Qiu, Ding, Dong, Yu, Ming-Xing, Gao, Ting, Yan, Feng-Li
Rok vydání: 2024
Předmět:
Druh dokumentu: Working Paper
Popis: 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.
Comment: 7 pages, 2 figures
Databáze: arXiv