The heat kernel in Riemann normal coordinates and multiloop Feynman graphs in curved spacetime
Abstract We present a formalism for computing arbitrary scalar 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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Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
SpringerOpen
2024-12-01
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Series: | Journal of High Energy Physics |
Subjects: | |
Online Access: | https://doi.org/10.1007/JHEP12(2024)140 |
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