KALUZA-KLEIN INDUCED WEYL INVARIANT EFFECTIVE THEORY

Abstract

All dimensional parameters in most gravitational models can be promoted to dimensional field variables which can be embedded in some higher dimensional Kaluza-Klein vielbein. An elegant method of computing dimensional reduction process via vielbein and differential form is introduced. We compute the reduced lower dimensional effective scale invariant action after the dimensional reduction takes place. Some applications to the inflationary universe are also discussed.