The Heat Kernel in Riemann Normal Coordinates and Multiloop Feynman Graphs in Curved Spacetime
High Energy Physics - Theory
2024-08-09 v1 High Energy Physics - Phenomenology
Abstract
We present a formalism for computing arbitrary 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.
Keywords
Cite
@article{arxiv.2408.04005,
title = {The Heat Kernel in Riemann Normal Coordinates and Multiloop Feynman Graphs in Curved Spacetime},
author = {Igor Carneiro and Gero von Gersdorff},
journal= {arXiv preprint arXiv:2408.04005},
year = {2024}
}