par Urban, Federico
Référence Journal of Cosmology and Astroparticle Physics, 2013, 8, 008
Publication Publié, 2013-08
Article révisé par les pairs
Résumé : We calculate the anisotropic signal associated with the coupling of a three-form with an Abelian vector gauge field. In the simplest examples of three-form inflation the amplification of the vector fluctuations is exponential; this makes it almost certain that a large anisotropy will develop, severely constraining the viability of the coupling. © 2013 IOP Publishing Ltd and Sissa Medialab srl.