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Experimental genuine quantum nonlocality in the triangle network

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arxiv 2401.15428 v2 pith:G27HJLLX submitted 2024-01-27 quant-ph

classification quant-ph
keywords quantumnetworknonlocalitytrianglecorrelationsexperimentallyobtainseveral
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In the last decade, it was understood that quantum networks involving several independent sources of entanglement which are distributed and measured by several parties allowed for completely novel forms of nonclassical quantum correlations, when entangled measurements are performed. Here, we experimentally obtain quantum correlations in a triangle network structure, and provide solid evidence of its nonlocality. Specifically, we first obtain the elegant distribution proposed in (Entropy 21, 325) by performing a six-photon experiment. Then, we justify its nonlocality based on machine learning tools to estimate the distance of the experimentally obtained correlation to the local set, and through the violation of a family of conjectured inequalities tailored for the triangle network.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Detecting entanglement in any measurement using quantum networks

    quant-ph 2025-02 conditional novelty 6.0 of 10

    Every entangled measurement can be witnessed through swap steering, and every rank-one projective entangled measurement can be detected in a device-independent star network.

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    Using a broadcast quantum network, two parties can certify randomness from Bell-local entangled states with better noise tolerance than standard CHSH-based protocols.

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    astro-ph.EP 2026-04 unverdicted novelty 5.0 of 10

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