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arXiv · 2408.04005

The Heat Kernel in Riemann Normal Coordinates and Multiloop Feynman Graphs in Curved Spacetime

Igor Carneiro·Gero von Gersdorff
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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.

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Igor Carneiro, Gero von Gersdorff. 2024-08-07. The Heat Kernel in Riemann Normal Coordinates and Multiloop Feynman Graphs in Curved Spacetime. https://arxiv.org/abs/2408.04005

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