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arXiv · 1205.6676

Bouncing Eddington-inspired Born-Infeld cosmologies: an alternative to Inflation ?

P. P. Avelino·R. Z. Ferreira
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Abstract

We study the dynamics of a homogeneous and isotropic Friedmann-Robertson-Walker universe in the context of the Eddington-inspired Born-Infeld theory of gravity. We generalize earlier results, obtained in the context of a radiation dominated universe, to account for the evolution of a universe permeated by a perfect fluid with an arbitrary equation of state parameter $w$. We show that a bounce may occur for $κ>0$, if $w$ is time-dependent, and we demonstrate that it is free from tensor singularities. We argue that Eddington-inspired Born-Infeld cosmologies may be a viable alternative to the inflationary paradigm as a solution to fundamental problems of the standard cosmological model.

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P. P. Avelino, R. Z. Ferreira. 2012-05-30. Bouncing Eddington-inspired Born-Infeld cosmologies: an alternative to Inflation ?. https://doi.org/10.1103/physrevd.86.041501

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