  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.

General Relativity and Quantum Cosmology;High Energy Physics - Theory