A printed edition of this Special Issue is available at MDPI Books....
A Lenient Causal Arrow of Time?
Department of Physics, Nuclear Research Center-Negev, P.O. Box 9001, Be’er Sheva 84190, Israel
Entropy 2018, 20(4), 294; https://doi.org/10.3390/e20040294
Received: 29 March 2018 / Revised: 13 April 2018 / Accepted: 15 April 2018 / Published: 18 April 2018
(This article belongs to the Special Issue Emergent Quantum Mechanics – David Bohm Centennial Perspectives)
One of the basic assumptions underlying Bell’s theorem is the causal arrow of time, having to do with temporal order rather than spatial separation. Nonetheless, the physical assumptions regarding causality are seldom studied in this context, and often even go unmentioned, in stark contrast with the many different possible locality conditions which have been studied and elaborated upon. In the present work, some retrocausal toy-models which reproduce the predictions of quantum mechanics for Bell-type correlations are reviewed. It is pointed out that a certain toy-model which is ostensibly superdeterministic—based on denying the free-variable status of some of quantum mechanics’ input parameters—actually contains within it a complete retrocausal toy-model. Occam’s razor thus indicates that the superdeterministic point of view is superfluous. A challenge is to generalize the retrocausal toy-models to a full theory—a reformulation of quantum mechanics—in which the standard causal arrow of time would be replaced by a more lenient one: an arrow of time applicable only to macroscopically-available information. In discussing such a reformulation, one finds that many of the perplexing features of quantum mechanics could arise naturally, especially in the context of stochastic theories. View Full-Text►▼ Show Figures
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
MDPI and ACS Style
Argaman, N. A Lenient Causal Arrow of Time? Entropy 2018, 20, 294.
AMA StyleShow more citation formats Show less citations formats
Argaman N. A Lenient Causal Arrow of Time? Entropy. 2018; 20(4):294.Chicago/Turabian Style
Argaman, Nathan. 2018. "A Lenient Causal Arrow of Time?" Entropy 20, no. 4: 294.
Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.