Diffusion method in field theories with fakeons

Year: 2025

Type: article

Abstract: We adapt the diffusion method employed in fundamentally nonlocal field theories to determine the number of initial conditions for the classicized dynamics of unitary field theories with fakeons, characterized by inverse powers of the d’Alembertian operator □ . We show that this number is two and we recover all the results obtained with a direct calculation elsewhere, including explicit solutions of linear toy models. Possible applications to nonlocal gravity are discussed.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/hk2t-4qlz

Author: Gianluca Calcagni

Institutions: Consejo Superior de Investigaciones Científicas, Instituto de Estructura de la Materia

Language: English

Topic: Relativity and Gravitational Theory

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: Ministerio de Ciencia, Innovación y Universidades, Ministerio de Ciencia e Innovación, Agencia Estatal de Investigación

OpenAlex ID: W4417515598