1112.1356 (Tomi S. Koivisto et al.)

Three-magnetic fields    [PDF]

Tomi S. Koivisto, Federico R. Urban

A completely new mechanism to generate the observed amount of large-scale cosmological magnetic fields is introduced in the context of three-form inflation. The amplification of the fields occurs via fourth order dynamics of the vector perturbations and avoids the backreaction problem that plagues most previously introduced mechanisms.

View original: http://arxiv.org/abs/1112.1356