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Journal Articles Entropy Year : 2022

Revisiting Born’s rule through Uhlhorn’s and Gleason’s theorems

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Abstract

In a previous article [1] we presented an argument to obtain (or rather infer) Born's rule, based on a simple set of axioms named "Contexts, Systems and Modalities" (CSM). In this approach there is no "emergence", but the structure of quantum mechanics can be attributed to an interplay between the quantized number of modalities that are accessible to a quantum system, and the continuum of contexts that are required to define these modalities. The strong link of this derivation with Gleason's theorem was emphasized, with the argument that CSM provides a physical justification for Gleason's hypotheses. Here we extend this result by showing that an essential one among these hypotheses - the need of unitary transforms to relate different contexts - can be removed and is better seen as a necessary consequence of Uhlhorn's theorem.
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Dates and versions

hal-03455462 , version 1 (29-11-2021)

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Alexia Auffèves, Philippe Grangier. Revisiting Born’s rule through Uhlhorn’s and Gleason’s theorems. Entropy, 2022, 24 (2), pp.199. ⟨10.3390/e24020199⟩. ⟨hal-03455462⟩
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