Measurement and Macroscopicity: Overcoming Conceptual Imprecision in Quantum Measurement Theory

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Gregg Jaeger Submitted to “Quantum Nonlocality and Reality – 50 Years of Bell’s theorem” John S. Bell, of course, is most well known for the result now referred to simply as “Bell’s theorem”, which removed from consideration the class of so-called local hidden-variable theories which at the time of its publishing appeared to be the most natural class of theories… Read more →

Weekly Papers on Quantum Foundations (49)

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This is a list of this week’s papers on quantum foundations published in the various journals or uploaded to the preprint servers such as arxiv.org and PhilSci Archive. Convergence of empirical distributions in an interpretation of quantum mechanics. (arXiv:1412.1563v1 [quant-ph]) quant-ph updates on arXiv.org on 2014-12-05 11:44am GMT Authors: Ian W. McKeague, Bruce Levin From its beginning, there have been attempts by… Read more →

Local Beables and the Foundations of Physics

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Tim Maudlin Submitted to “Quantum Nonlocality and Reality – 50 Years of Bell’s theorem” John Bell’s most celebrated contribution to the foundations of physics is his famous theorem. The theorem demonstrates that any physical theory capable of generating the predictions of the standard quantum-mechanical algorithm, in particular the prediction of violations of Bell’s inequality for experiments done at space-like separation,… Read more →

Weekly Papers on Quantum Foundations (48)

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This is a list of this week’s papers on quantum foundations published in the various journals or uploaded to the preprint servers such as arxiv.org and PhilSci Archive. Causality and chance in relativistic quantum field theories ScienceDirect Publication: Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics on 2014-11-29 11:57am GMT Publication… Read more →

What did Bell really prove?

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Jean Bricmont Submitted to “Quantum Nonlocality and Reality – 50 Years of Bell’s theorem” The goal of this paper is to give a pedagogical introduction to Bell’s theorem and its implication for our view of the physical world, in particular how it establishes the existence of non local effects or of actions at a distance. We also discuss several misunderstandings… Read more →

Interactions and Inequality

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Philip Pearle Submitted to “Quantum Nonlocality and Reality – 50 Years of Bell’s theorem” John Bell was a staunch supporter of the dynamical wave function collapse approach to making a well-defined quantum theory. Through letters from him, I reminisce on my handful of interactions with him, all of which were memorable to me. Then, non-locality, violation of Bell’s inequality and… Read more →

Submitted paper: Haag’s Theorem as a Reason to Reconsider Direct-Action Theories

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ABSTRACT. It is argued that the severe consequences of Haag’s inconsistency theorem for quantum field theories can be successfully evaded in the direct-action approach. Some recent favorable comments of John Wheeler, often mistakenly presumed to have abandoned his own (and Feynman’s) direct-action theory, together with the remarkable immunity of direct-action quantum electrodynamics to Haag’s theorem, suggest that it may well… Read more →