Primordial magnetic fields in theories of gravity with non-minimal coupling between curvature and matter

  title={Primordial magnetic fields in theories of gravity with non-minimal coupling between curvature and matter},
  author={Orfeu Bertolami and Maria Margarida Lima and Filipe C. Mena},
  journal={General Relativity and Gravitation},
The existence of magnetic fields in the universe is unmistakable. They are observed at all scales from stars to galaxy clusters. However, the origin of these fields remains enigmatic. It is believed that magnetic field seeds may have emerged from inflation, under certain conditions. This possibil-ity is analised in the context of an alternative theory of gravity with non-minimal coupling between curvature and matter. We find, through the solution of the generalised Maxwell equations in the context… 


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