Vector inflation

By A. Golovnev, V. Mukhanov, V. Vanchurin. 2008

341 citations recorded by the source corpus.

We propose a scenario where inflation is driven by non-minimally coupled massive vector fields. In an isotropic homogeneous universe these fields behave in precisely the same way as a massive minimally coupled scalar field. Therefore our model is very similar to the model of chaotic inflation with a scalar field. For vector fields the isotropy of expansion is achieved either by considering a triplet of orthogonal vector fields or at the expense of N randomly oriented vector fields. In the latter case the substantial anisotropy of the expansion of order survives until the end of inflation. The lightest vector fields might also force the late time acceleration of the universe.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Oceanography

View Paper: https://www.semanticscholar.org/paper/39bfceb7b1922a628edd5e463cb43392b9679403

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In Astronomy and Astrophysics

In Nuclear and High Energy Physics

In Oceanography

Citations in the corpus

Vector field models of inflation and dark energy (2008, neutral): “Contents”
Science with the space-based interferometer LISA. IV: probing inflation with gravitational waves (2016, background): “[121], break space-reparametrization symmetry by providing space-like vacuum expectation values (vevs) to a set of vector fields.”
A systematic approach to generalisations of General Relativity and their cosmological implications (2018, background): “One can also consider a non-minimal coupling to the gravity sector, which was pursued in [239] with a coupling of the form RAμA μ.”
Perturbations in Chromo-Natural Inflation (2013, background): “However, many of these vector models [37, 38, 40, 41], though not [42], are inherently unstable [43–46].”
Cosmology and Fundamental Physics with the Euclid Satellite (2012, methodology): “Approaches to deal with the anisotropy have been based on a “triad” of three identical vectors aligned with the three axis (Armendariz-Picon 2004), a large number of randomly oriented fields averaging to isotropy (Golovnev et al. 2008), time-like (Koivisto and Mota 2008c) or sub-dominant (Dimopoulos”