Heat kernel methods for multiloop calculations in curved spacetime: nonzero spin
A bstract In a previous paper we have presented a general formalism for computing Feynman diagrams for scalar fields in curved spacetime at any loop order using heat kernel methods. The main technique used is the expansion of the fully off-diagonal heat kernel in Riemann normal coordinates. In this work we extend this to include fields of nonzero spin, in particular spin- $$\frac{1}{2}$$ fermions.
Authors
- Gero von Gersdorff (ORCID: https://orcid.org/0000-0003-2668-9646)
- Igor Carneiro
Institutions
- École Polytechnique (FR)
- Pontifícia Universidade Católica do Rio de Janeiro (BR)
- Institut Polytechnique de Paris (FR)
Publication Details
- Journal
- Journal of High Energy Physics
- Published
- 2025-10-09
- DOI
- https://doi.org/10.1007/jhep10(2025)078
- Citations
- 1
- Primary Topic
- Quantum Chromodynamics and Particle Interactions
- Type
- article
- Field-Weighted Citation Impact
- 1.87
Funders
- Institut Polytechnique de Paris
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro