Geometrization of the Gauge Connection within a Kaluza-Klein Theory

Details Geometrization of the Gauge Connection within a Kaluza-Klein Theory Geometrization of the Gauge Connection within a Kaluza-Klein Theory

2004-12-07

arxiv.org/abs/gr-qc/0412030v1

Int.J.Theor.Phys. 44 (2005) 43-52

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, no figure, to appear on Int. Journ. Theor. Phys

Scientific paper

10.1007/s10773-005-1435-0

Within the framework of a Kaluza-Klein theory, we provide the geometrization of a generic (Abelian and non-Abelian) gauge coupling, which comes out by choosing a suitable matter fields dependence on the extra-coordinates. We start by the extension of the Nother theorem to a multidimensional spacetime being the direct sum of a 4-dimensional Minkowski space and of a compact homogeneous manifold (whose isometries reflect the gauge symmetry); we show, how on such a ``vacuum'' configuration, the extra-dimensional components of the field momentum correspond to the gauge charges. Then we analyze the structure of a Dirac algebra as referred to a spacetime with the Kaluza-Klein restrictions and, by splitting the corresponding free-field Lagrangian, we show how the gauge coupling terms outcome.

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