12/06/2023. Nos lecteurs trouveront ici quelques précisions concernant les travaux évoqués par le récent article du Newscientist daté du 4 mars 2023 « Another level of weirdness »

Une nouvelle hypothèse dite almost quantum theory
The theory predicts, not the probabilities of a measurement result, but only whether or not a result is possible.
In this study we have identified a set of correlations, named almost quantum, that, despite being strictly larger than the quantum set, seems to satisfy all device-independent principles proposed so far to single out quantum correlations. This set is consistent and has an efficient numerical characterization. Feb 20, 2015.
https://link.springer.com/chapter/10.1007/978-94-017-7303-4_3#:~:text=The%20theory%20predicts%2C%20not%20the,not%20a%20result%20is%20possible.

Macroscopic reality
A glance beyond the quantum model
Miguel Navascués and Harald Wunderlich
Published:11 November 2009
https://doi.org/10.1098/rspa.2009.0453
Abstract
One of the most important problems in physics is to reconcile quantum mechanics with general relativity, and some authors have suggested that this may be realized at the expense of having to drop the quantum formalism in favour of a more general theory. Here, we propose a mechanism to make general claims on the microscopic structure of the Universe by postulating that any post-quantum theory should recover classical physics in the macroscopic limit. We use this mechanism to bound the strength of correlations between distant observers in any physical theory. Although several quantum limits are recovered, such as the set of two-point quantum correlators, our results suggest that there exist plausible microscopic theories of Nature that predict correlations impossible to reproduce in any quantum mechanical system.

The principle of Information Causality
by M Pawlowski · 2009 ·  Here, we introduce the principle of Information Causality. It states that information that Bob can gain about a previously completely …
https://arxiv.org/abs/0905.2292

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