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arXiv · 0803.3041

Non-minimally coupled vector curvaton

Konstantinos Dimopoulos·Mindaugas Karciauskas
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Abstract

It is shown that a massive Abelian vector boson field can generate the curvature perturbation in the Universe, when coupled non-minimally to gravity, through an RA^2 coupling. The vector boson acts as a curvaton field imposing the curvature perturbation after the end of inflation, without generating a large-scale anisotropy. The parameter space of the model is fully explored, obtaining the relevant bounds on the inflation scale and the decay constant of the vector curvaton.

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Konstantinos Dimopoulos, Mindaugas Karciauskas. 2008-04-24. Non-minimally coupled vector curvaton. https://doi.org/10.1088/1126-6708%2F2008%2F07%2F119

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