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The Heat Kernel in Riemann Normal Coordinates and Multiloop Feynman Graphs in Curved Spacetime (2408.04005v1)
Published 7 Aug 2024 in hep-th and hep-ph
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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