Physica Scripta

Verifying quantum network nonlocality based on the extended Svetlichny inequality

LI Xinyue, Yan-Han Yang, Li-Ming Zhao, 罗明星

Published May 21, 2026• 0 citations

Abstract

Abstract This work presents an extension of the Svetlichny inequality to star-topology quantum networks, enabling the verification of network nonlocality in distributed architectures. The proposed framework uses joint measurements at a central node to certify the entanglement properties between peripheral nodes after their local measurement collapse. We further generalize this methodology to composite quantum networks, constructed from multiple EPR pairs and featuring hybrid star-chain structures, thereby demonstrating its applicability to complex entanglement configurations.

DOI: 10.1088/1402-4896/ae719b

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