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Experimental Violation of the Leggett-Garg Inequality Using the Polarization of Classical Light

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arxiv 2012.03940 v3 pith:5QERW5HO submitted 2020-12-06 quant-ph

Wenlei Zhang , Ravi K. Saripalli , Jacob M. Leamer , Ryan T. Glasser , Denys I. Bondar This is my paper · ORCID
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keywords leggett-garginequalityclassicalcorrelationsinequalitiespolarizationsystemtest
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In contrast to Bell's inequalities which test the correlations between multiple spatially separated systems, the Leggett-Garg inequalities test the temporal correlations between measurements of a single system. We experimentally demonstrate the violation of the Leggett-Garg inequality in a classical optical system using only the polarization degree-of-freedom of a laser beam. Our results show maximal violations of the Leggett-Garg inequality.

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  1. Violation of the Leggett-Garg inequality in photon-graviton conversion

    gr-qc 2026-01 conditional novelty 4.0 of 10

    Photon-graviton conversion in a magnetic field produces a Leggett-Garg inequality violation, but the violation follows from the generic two-level oscillation formula and an invasive measurement protocol, so it is not ...

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