A classical unified field theory of gravitation, electromagnetism and spin  Foundations
Abstract
A classical unified field theory (UFT) of gravitation and electromagnetism, based on the SU(2) bundle for the kinematic background and the generalized Einstein equation of M for the dynamic content, is derived and discussed. The principal fiberbundle structure of the classical universe is explored, and the fundamental field equations of the UFT are presented. The spacetime structure obtained is shown to imply the existence of electromagnetism and intrinsic spin, and generalized Maxwell equations are derived to account for formal discrepancies between the UFT and EM theory. The possible existence of magnetic charge or current as products of the interaction of gravitation and electromagnetism is considered.
 Publication:

Scientia Sinica Series Mathematical Physical Technical Sciences
 Pub Date:
 January 1986
 Bibcode:
 1986SSSMP..29...51Y
 Keywords:

 Electromagnetism;
 Gravitation Theory;
 Relativistic Theory;
 Unified Field Theory;
 Einstein Equations;
 Manifolds (Mathematics);
 Maxwell Equation;
 SpaceTime Functions;
 Spin Dynamics;
 Physics (General)