Demonstrates Bell nonclassicality for path-identity-based interference in PDC processes by violating Clauser-Horne inequality via on-off switching of local processes, unlike phase-shift settings which admit a local realistic model.
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A network of N parametric down-conversion sources with local crystals at each observer produces 2N-photon interference that vanishes when any local pump is blocked, enabling violation of a lifted Clauser-Horne inequality for multipartite Bell-GHZ nonclassicality.
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Unquestionable Bell theorem for interwoven frustrated down conversion processes
Demonstrates Bell nonclassicality for path-identity-based interference in PDC processes by violating Clauser-Horne inequality via on-off switching of local processes, unlike phase-shift settings which admit a local realistic model.
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Multipartite Bell-GHZ nonclassicality from interwoven frustrated down-conversion
A network of N parametric down-conversion sources with local crystals at each observer produces 2N-photon interference that vanishes when any local pump is blocked, enabling violation of a lifted Clauser-Horne inequality for multipartite Bell-GHZ nonclassicality.