Related papers: Revisiting Quantum Contextuality

Revisiting Quantum Contextuality

URL: http://arxiv.org/abs/2201.00371v1
Date: Sun, 2 Jan 2022 16:00:23 GMT
Title: Revisiting Quantum Contextuality
Authors: Philippe Grangier
Abstract summary: We will introduce and discuss the ideas of extracontextuality and extravalence. The link between these issues is provided by a specific quantum feature that we call extravalence.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: The purpose of this note is to complete the interesting review on quantum contextuality [1] that appeared recently. In particular we will introduce and discuss the ideas of extracontextuality and extravalence, that allow one to relate Kochen-Specker's and Gleason's theorems, and also to shift the emphasis from the first to the second one. We will also argue that whereas Kochen-Specker's is essentially a negative result (a no-go theorem), Gleason's is a positive one since it provides a mathematical justification of Born's rule. The link between these issues is provided by a specific quantum feature that we call extravalence.

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