Universality of the Unruh effect

TL;DR

This paper demonstrates that the Unruh effect is universally valid across a broad class of weakly non-local field theories, resolving conflicting claims in existing literature through two independent methods.

Contribution

It establishes the universality of the Unruh effect in weakly non-local theories and clarifies previous disagreements using canonical and path integral approaches.

Findings

Unruh effect holds universally in weakly non-local field theories.

Resolves conflicting claims about the Unruh effect in literature.

Uses two independent computational methods for validation.

Abstract

In this paper we prove the universal nature of the Unruh effect in a general class of weakly non-local field theories. At the same time we solve the tension between two conflicting claims published in literature. Our universality statement is based on two independent computations based on the canonical formulation as well as path integral formulation of the quantum theory.