Remarks on the use of objective probabilities in Bell-CHSH inequalities

• URL: http://arxiv.org/abs/2202.08353v1
• Date: Wed, 16 Feb 2022 21:59:52 GMT
• Title: Remarks on the use of objective probabilities in Bell-CHSH inequalities
• Authors: Aldo F.G. Solis-Labastida, Melina Gastelum and Jorge G. Hirsch
• Abstract summary: We explore the axioms which can be deduced from two widely used objetive probability theories: frequentism and propensities. One of the strongest objections in the deduction of one version of Bell inequalities goes about the probability space. It is shown that frequentism rejects the possibility of using counterfactual situations, while long-run propensities allow their use.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The violation of Bell inequalities is often interpreted as showing that, if hidden variables exist, they must be contextual and non local. But they can also be explained questioning the probability space employed, or the validity of the Kolmogorov axioms. In this article we explore the additional constrains which can be deduced from two widely used objetive probability theories: frequentism and propensities. One of the strongest objections in the deduction of one version of Bell inequalities goes about the probability space, which assumes the existence of values for the output of the experiment in each run, while only two of the four values can be measured each time, making them counterfactual. It is shown that frequentism rejects the possibility of using counterfactual situations, while long-run propensities allow their use. In this case the introduction of locality and contextuality does not help to explain the violation, and an alternative explanation could point to a failure of the probability. Single case propensities were designed to associate probabilities to single events, but they need to be conditional to the whole universe, and do not have a clear link with the observed relative frequencies. It heavily limits their use.

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