Heat Kernel Methods for Multiloop Calculations in Curved Spacetime: Nonzero Spin
High Energy Physics - Theory
2025-07-02 v1 High Energy Physics - Phenomenology
Abstract
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- fermions.
Keywords
Cite
@article{arxiv.2507.00177,
title = {Heat Kernel Methods for Multiloop Calculations in Curved Spacetime: Nonzero Spin},
author = {Igor Carneiro and Gero von Gersdorff},
journal= {arXiv preprint arXiv:2507.00177},
year = {2025}
}