Lcg. Deandrade et C. Sivaram, TORSION, MASSIVE ELECTRODYNAMICS AND PRIMORDIAL MAGNETIC-FIELDS IN THE EARLY UNIVERSE, Astrophysics and space science, 209(1), 1993, pp. 109-111
A recent model of torsion-modified electrodynamics which breaks the el
ectromagnetic conformal invariance is shown to lead to the generation
of magnetic fields in the Early Universe.