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Simulating Quantum Mechanics by Non-Contextual Hidden Variables

Rob Clifton·Adrian Kent
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Abstract

No physical measurement can be performed with infinite precision. This leaves a loophole in the standard no-go arguments against non-contextual hidden variables. All such arguments rely on choosing special sets of quantum-mechanical observables with measurement outcomes that cannot be simulated non-contextually. As a consequence, these arguments do not exclude the hypothesis that the class of physical measurements in fact corresponds to a dense subset of all theoretically possible measurements with outcomes and quantum probabilities that \emph{can} be recovered from a non-contextual hidden variable model. We show here by explicit construction that there are indeed such non-contextual hidden variable models, both for projection valued and positive operator valued measurements.

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Rob Clifton, Adrian Kent. 2000-05-29. Simulating Quantum Mechanics by Non-Contextual Hidden Variables. https://doi.org/10.1098/rspa.2000.0604

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