Einstein-Podolsky-Rosen (EPR) Correlations and Superluminal Interactions

TL;DR

This paper explores the potential link between EPR correlations and superluminal interactions, examining experimental setups, reanalyzing existing theorems, and discussing how faster-than-light influences could coexist with relativity.

Contribution

It introduces simple experimental considerations, reexamines the Scarani-Gisin theorem, and discusses the compatibility of superluminal interactions with Lorentz transformations.

Findings

An experiment with time-like events can test if measurement on one photon affects its entangled partner.

The Scarani-Gisin theorem on superluminal influences is reinterpreted.

Faster-than-light interactions may coexist with Lorentz transformations.

Abstract

The possible connection between EPR correlations and superluminal interactions, as suggested by Bell and Bohm, is discussed using simple and palpable arguments: (a) It is shown how an experiment based on time-like events can allow us to answer the question "Can a measurement performed on one of the photons of an entangled pair change the state of the other?" (b) The theorem on superluminal finite-speed causal influences and superluminal signaling, introduced by Scarani and Gisin, is reexamined. (c) It is shown how faster-than-light interactions and Lorentz transformations might peacefully coexist.