Quantum measurement, detection and locality

TL;DR

This paper explores whether detailed quantum analysis of measurement interactions can reconcile quantum theory with local realism, challenging the assumptions underlying Bell's theorem.

Contribution

It proposes that a thorough quantum analysis of measurement interactions might remove the assumption causing the conflict between quantum theory and local realism.

Findings

Analysis suggests possible compatibility of quantum theory and local realism

Highlights the importance of measurement interaction details in Bell experiments

Identifies theoretical and experimental challenges in testing local realism

Abstract

According to Bell's theorem, local realism is incompatible with quantum theory. However, it depends on an implied assumption about quantum measurement. We suggest that the assumption might be removed by a detailed quantum analysis of the interaction between the measured system and measuring apparatus using Born's statistical interpretation. But it is conceivable that detailed analysis of all possible Bell experiments would allow the compatibility of quantum theory and local realism. The difficulties of theory and experiment are closely related.