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Title: The anisotropy of a three- and a one-form

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.
Authors:
 [1]
  1. Service de Physique Théorique, Université Libre de Bruxelles, CP225, Boulevard du Triomphe, B-1050 Brussels (Belgium)
Publication Date:
OSTI Identifier:
22282700
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2013; Journal Issue: 08; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; AMPLIFICATION; ANISOTROPY; COSMOLOGY; COUPLING; FLUCTUATIONS; GAUGE INVARIANCE; INFLATIONARY UNIVERSE; INFLATONS; SIGNALS; VECTORS