Abstract: | Einstein's Field Theory with Tele-Parallelism and Dirac's Classical Theory of Electrons (Unified Field Theory with the Vector-Potential as a Reference-Tetrad) The Einstein-Maxwell theory of gravitation and electro-magnetism with Dirac-gauge AiAi = m2c4/e2 of the vector-potential Ai can be written as a purely geometrical field theory. The geometry of this field theory is Einstein's “Riemannian geometry with teleparallelism” and the vectorpotential is given by the time-like component of the tetrads h which define this tele-parallelism; we have -Physically, this unified field theory implies a generalization of the Einstein-Maxwell equations by introduction of a “current without current” describing Faraday's “gravoelectrical induction” corresponding with Dirac's electronic current λAi. |