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Experiments towards Falsification of Noncontextual Hidden Variable Theories

Markus Michler·Harald Weinfurter·Marek Zukowski
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Abstract

We present two experiments testing the hypothesis of noncontextual hidden variables (NCHV's). The first one is based on observation of two-photon pseudo-Greenberger-Horne-Zeilinger correlations, with two of the originally three particles mimicked by the polarization degree of freedom and the spatial degree of freedom of a single photon. The second one, a single-photon experiment, utilizes the same trick to emulate two particle correlations, and is an "event ready" test of a Bell-like inequality, derived from the noncontextuality assumption. Modulo fair sampling, the data falsify NCHV's.

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Markus Michler, Harald Weinfurter, Marek Zukowski. 2000-09-14. Experiments towards Falsification of Noncontextual Hidden Variable Theories. https://doi.org/10.1103/physrevlett.84.5457

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