Università degli Studi di Genova
In the framework of J -bundles a vielbein formulation of unified Einstein– Maxwell theory is proposed. In the resulting scheme, field equations matching the gravitational and electromagnetic fields are derived by constraining a 5- dimensional variational principle. No dynamical scalar field in involved.
General Relativity, Einstein–Maxwell Theory, Kaluza Theory
Pubblicato su: Classical and Quantum Gravity Vol. 23 (2006) Pag. 6781-6791