One-loop background calculations in the general field theory
P.Pronin, K.Stepanyantz
TL;DR
This paper provides comprehensive formulas for calculating the divergent parts of the one-loop effective action in quantum field theories, applicable to various operators in curved and flat spacetime.
Contribution
It introduces general master formulas for one-loop divergences applicable to minimal and nonminimal operators in different spacetime geometries.
Findings
Derived master formulas for one-loop divergences in curved space.
Extended formulas to nonminimal operators in flat space.
Applicable to a wide class of field theories.
Abstract
We present master formulas for the divergent part of the one-loop effective action for a minimal operator of any order in the 4-dimensional curved space and for an arbitrary nonminimal operator in the flat space.
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