Primordial torsion fields as an explanation of the anisotropy in electromagnetic propagation over cosmological distances

Jun, 1997
3 pages
Published in:
  • Mod.Phys.Lett.A 12 (1997) 3003-3007
e-Print:
Report number:
  • FT-UCM-4-97

Citations per year

1997200220072012201601234567
Abstract: (arXiv)
In this note we provide a simple explanation of the recent finding of anisotropy in electromagnetic (EM) propagation claimed by Nodland and Ralston (astro-ph/9704196). We consider, as a possible origin of such effect, the effective coupling between EM fields and some tiny background torsion field. The coupling is obtained after integrating out charged fermions, it is gauge invariant and does not require the introduction of any new physics.
  • coupling: torsion
  • radiation: electromagnetic
  • radiation: anisotropy
  • galaxy
  • fermion: charged particle
  • Feynman graph