01-front-cover

Quasilocal Background Approach to the One-loop Effective Action

Abstract

The one-loop effective action that accommodates an arbitrary number of covariant derivatives of a strong but slowly-varying background field is presented in closed form.  The internal symmetry and spacetime dimension are kept arbitrary in the formalism.  The first few terms in the perturbative expansion of the one-loop effective action are derived and are found to agree with those obtained using popular methods.

Quasilocal Background Approach to the One-loop Effective Action (210.7 KiB)