Questions tagged [contextuality]

For questions related to contextuality (a foundational concept in quantum mechanics) as relevant to quantum computing and/or quantum information. Contextuality means that in any theory that attempts to explain quantum mechanics deterministically, the measurement result of a quantum observable depends on the specific experimental setup being used to measure that observable, in particular, the commuting observables being measured with it. (Wikipedia)

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Can the Peres-Mermin square be reframed as a statement on the associated conditional outcome probabilities?

As mentioned in this answer, and links therein (assuming I'm understanding correctly), (non)contextuality can be defined as a property of a given set of conditional probability distributions, that is, ...