Geometry and Matter Reduction in a 5D Kaluza-Klein Framework

Abstract

In this paper we consider the Kaluza-Klein fields equations in presence of a generic 5D matter tensor which is governed by a conservation equation due to 5D Bianchi identities. Following a previous work, we provide a consistent approach to matter where the problem of huge massive modes is removed, without relaxing the compactification hypotheses; therefore we perform the dimensional reduction either for metric fields and for matter, thus identifying a pure 4D tensor term, a 4D vector term and a scalar one. Hence we are able to write down a consistent set of equations for the complete dynamics of matter and fields ; with respect to the pure Einstein-Maxwell system we now have two additional scalar field: the usual dilaton one plus a scalar source term. Some significant scenarios involving these terms are discussed and perspectives for cosmological applications are suggested.

to appear on IJMPA

References in corpus (1)

• Consequences of dark matter-dark energy interaction on cosmological parameters derived from SNIa data

Cited by in corpus (5)

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• On the electromagnetic emission from charged test particles in a five dimensional spacetime