Work

The heat kernel in Riemann normal coordinates and multiloop Feynman graphs in curved spacetime

Year: 2024

Type: article

Abstract: A bstract We present a formalism for computing arbitrary scalar multi-loop Feynman graphs in curved spacetime using the heat kernel approach. To this end, we compute the off-diagonal components of the heat kernel in Riemann normal coordinates up to second order in the curvature.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep12(2024)140

Authors: Igor Carneiro, Gero von Gersdorff

Institutions: Pontifícia Universidade Católica do Rio de Janeiro, Institut Polytechnique de Paris

Language: English

Topic: Relativity and Gravitational Theory

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Conselho Nacional de Desenvolvimento Científico e Tecnológico, Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro

OpenAlex ID: W4405972737