Inflation from R^2 gravity: a new approach using nonlinear electrodynamics
arXiv:1011.4801 · doi:10.1016/j.astropartphys.2010.12.002
Abstract
We discuss another approach regarding the inflation from the R^2 theory of gravity originally proposed by Starobinski. A non-singular early cosmology is proposed, where, adding a nonlinear electrodynamics Lagrangian to the high-order action, a bouncing is present and a power-law inflation is obtained. In the model the Ricci scalar works like an inflaton field.
Definitive version to be published in Astroparticle Physics during 2011, 9 pages
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