My watch list
my.chemeurope.com  
Login  

Entropy, Vol. 20, Pages 478: GHZ States as Tripartite PR Boxes: Classical Limit and Retrocausality

Entropy, Vol. 20, Pages 478: GHZ States as Tripartite PR Boxes: Classical Limit and Retrocausality

Entropy doi: 10.3390/e20060478

Authors: Daniel Rohrlich Guy Hetzroni

We review an argument that bipartite “PR-box” correlations, though designed to respect relativistic causality, in fact violate relativistic causality in the classical limit. As a test of this argument, we consider Greenberger–Horne–Zeilinger (GHZ) correlations as a tripartite version of PR-box correlations, and ask whether the argument extends to GHZ correlations. If it does—i.e., if it shows that GHZ correlations violate relativistic causality in the classical limit—then the argument must be incorrect (since GHZ correlations do respect relativistic causality in the classical limit.) However, we find that the argument does not extend to GHZ correlations. We also show that both PR-box correlations and GHZ correlations can be retrocausal, but the retrocausality of PR-box correlations leads to self-contradictory causal loops, while the retrocausality of GHZ correlations does not.

Authors:   Rohrlich, Daniel ; Hetzroni, Guy
Journal:   Entropy
Volume:   20
edition:   6
Year:   2018
Pages:   478
DOI:   10.3390/e20060478
Publication date:   20-Jun-2018
Facts, background information, dossiers
  • entropy
More about Molecular Diversity Preservation International
Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE