Path integral and particle ontology

TL;DR

This paper argues that a fundamental particle ontology is possible in relativistic quantum physics by reformulating certain quantum field theories as path integrals over particle configurations.

Contribution

It demonstrates that a particle-based ontology can be consistent with relativistic quantum theories, challenging the common belief against such an ontology.

Findings

Relativistic quantum field theories can be reformulated as path integrals over particle configurations.

A fundamental particle ontology is viable in relativistic quantum physics.

Challenges the view that particle ontology is incompatible with relativity.

Abstract

It is often said that in relativistic quantum physics, a fundamental particle ontology is not viable. However, previous works have shown that certain relativistic quantum field theories can be reformulated as path integrals over particle configurations. Drawing on these works, I argue that a fundamental particle ontology is actually viable in relativistic quantum physics.