Concerning gauge field fluctuations around classical configurations

Preprint number: CP3-Origins-2009-3
Author: Dennis D. Dietrich (CP3-Origins)
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We treat the fluctuations of non-Abelian gauge fields around a classical configuration by means of a transformation from the Yang–Mills gauge field to a homogeneously transforming field variable. We use the formalism to compute the effective action induced by these fluctuations in a static background without Wu–Yang ambiguity.