The Origin of the Electromagnetic Interaction in Einstein's Unified Field Theory with Sources

Abstract

Einstein's unified field theory is extended by the addition of matter terms in the form of a symmetric energy tensor and of two conserved currents. From the field equations and from the conservation identities emerges the picture of a gravoelectrodynamics in a dynamically polarizable Riemannian continuum. Through an approximate calculation exploiting this dynamical polarizability it is argued that ordinary electromagnetism may be contained in the theory.

8 pages. Misprint in eq. 15 corrected

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