QED Coupling from a 5-D Kaluza-Klein Theory

Details QED Coupling from a 5-D Kaluza-Klein Theory QED Coupling from a 5-D Kaluza-Klein Theory

2004-02-16

arxiv.org/abs/gr-qc/0402073v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

3 pages, no figures, proceedings of the X Marcel Grossmann Meeting, 22-26 July 2003, Rio de Janeiro

Scientific paper

We discuss the possibility to obtain, from a five-dimensional free spinor Lagrangian, the Quantum Electro-Dynamics (QED) coupling via a Kaluza-Klein reduction of the theory. This result is achieved taking a phase dependence of the spinor field on the extra-coordinate and modifying the corresponding connection. The five-dimensional spinor theory is covariant under the admissible coordinates transformations and its four-dimensional reduction provides the QED coupling term.

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