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Comment on “The Notion of Locality in Relational Quantum Mechanics”

Foundations of Physics volume 49, pages 1404–1414 (2019)Cite this article

The Original Article was published on 29 January 2019

Abstract

A recent paper (Martin-Dussaud et al. in Found Phys 49:96, 2019) has given a lucid treatment of Bell’s notion of local causality within the framework of the relational interpretation of quantum mechanics. However, the authors went on to conclude that the quantum violation of Bell’s notion of local causality is no more surprising than a common cause. Here, I argue that this conclusion is unwarranted by the authors’ own analysis. On the contrary, within the framework outlined by the authors, I argue that far from saving the notion of ‘locality’ from the grip of Bell’s theorem, the authors have deprived it of a meaningful definition.

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Acknowledgements

I thank G. Barreto Lemos for helpful feedback on an earlier draft. This work was supported in part by the John E. Fetzer Memorial Trust.

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  1. Jacques Pienaar

    Present address: Department of Physics, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA, 02125, USA

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  1. International Institute of Physics, Universidade Federal do Rio Grande do Norte, Campus Universitario, Lagoa Nova, Natal, RN, 59078-970, Brazil

    Jacques Pienaar

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Correspondence to Jacques Pienaar.

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Pienaar, J. Comment on “The Notion of Locality in Relational Quantum Mechanics”. Found Phys 49, 1404–1414 (2019). https://doi.org/10.1007/s10701-019-00303-w

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