Comments on New Ontology of Quantum Mechanics called CSM

TL;DR

This paper critiques a new quantum ontology called CSM, arguing it fails to convincingly explain quantum correlations and the coexistence of quantum mechanics with relativity, supporting the statistical contextual interpretation instead.

Contribution

The paper provides a critical analysis of the CSM ontology, highlighting its shortcomings and defending the statistical contextual interpretation of quantum mechanics.

Findings

CSM ontology cannot explain strong quantum correlations.

Statistical contextual interpretation accounts for observed correlations.

CSM fails to justify the coexistence of quantum mechanics and relativity.

Abstract

A new quantum ontology of quantum mechanics has been proposed recently. This ontology is based on impossible to realize measurements which need to be performed repeatedly on the same single physical system or on the same pair of physical systems. We agree that quantum mechanics is a contextual theory and that the experimental contexts have to be a part of any description of quantum phenomena but in our opinion this new ontology is neither convincing nor useful. In particular the authors claim that their ontology explains the peaceful coexistence between quantum mechanics and relativity in spin polarization correlation experiments. We show that, contrary to their claim, the authors are unable to explain why strong correlations, between the outcomes of distant local measurements, do exist and why they preserve a condition of parameter independence (non-signaling). Strangely enough the authors ignore that these strong but imperfect correlations can be explained in a local and causal way using statistical contextual interpretation of quantum mechanics what was demonstrated in several articles.