Related papers: Kochen-Specker Contextuality

Kochen-Specker Contextuality

URL: http://arxiv.org/abs/2102.13036v5
Date: Mon, 9 Jan 2023 13:26:20 GMT
Title: Kochen-Specker Contextuality
Authors: Costantino Budroni, Ad\'an Cabello, Otfried G\"uhne, Matthias Kleinmann, Jan-{\AA}ke Larsson
Abstract summary: A central result in the foundations of quantum mechanics is the Kochen-Specker theorem. It states that quantum mechanics is in conflict with classical models in which the result of a measurement does not depend on which other measurements are jointly performed. This conflict is generically called quantum contextuality.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: A central result in the foundations of quantum mechanics is the Kochen-Specker theorem. In short, it states that quantum mechanics is in conflict with classical models in which the result of a measurement does not depend on which other compatible measurements are jointly performed. Here compatible measurements are those that can be implemented simultaneously or, more generally, those that are jointly measurable. This conflict is generically called quantum contextuality. In this review, an introduction to this subject and its current status is presented. Several proofs of the Kochen-Specker theorem and different notions of contextuality are reviewed. How to experimentally test some of these notions is explained and connections between contextuality and nonlocality or graph theory are discussed. Finally, some applications of contextuality in quantum information processing are reviewed.

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