Magnetic field induced by vacuum polarization in de Sitter spacetime

Details Magnetic field induced by vacuum polarization in de Sitter spacetime Magnetic field induced by vacuum polarization in de Sitter spacetime

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvd..39.3612k&link_type=abstract

Physical Review D (Particles and Fields), Volume 39, Issue 12, 15 June 1989, pp.3612-3618

Physics

4

Theory Of Quantized Fields, Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

We derive the effective Lagrangian of a magnetic field in the context of a massless scalar QED coupled to gravity in de Sitter spacetime. It is found that the magnetic field is produced at the beginning of the inflation in a minimally coupled scalar QED, and that the intensity B is proportional to eH2 (H is the Hubble constant). When H=1015 GeV, B~1.3×1047 G.

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