Causality in Local Quantum Field Theory

TL;DR

This paper investigates causality in Local Quantum Field Theory, arguing that perceived noncausal effects arise from the absence of sharp localizability concepts in relativistic quantum systems.

Contribution

It clarifies that apparent noncausal behavior is due to the lack of a notion of sharp localizability, countering recent claims of noncausality in the field.

Findings

Noncausal behavior is attributed to localizability issues

Sharp localizability clarifies causality in quantum fields

Counteracts recent claims of noncausality

Abstract

The problem of causality is analyzed in the context of Local Quantum Field Theory. Contrary to recent claims, it is shown that apparent noncausal behaviour is due to a lack of the notion of sharp localizability for a relativistic quantum system. (Replaced corrupted file)