European Physical Journal C: Particles and Fields (Sep 2017)

Intermediate inflation in a generalized induced-gravity scenario

  • Carlos González,
  • Ramón Herrera

DOI
https://doi.org/10.1140/epjc/s10052-017-5218-6
Journal volume & issue
Vol. 77, no. 9
pp. 1 – 6

Abstract

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Abstract An intermediate inflationary Universe model in the context of non-minimal coupling to the scalar curvature is analyzed. We will conduct our analysis in the slow-roll approximation of the inflationary dynamics and the cosmological perturbations considering a coupling of the form $$F(\varphi )=\kappa +\xi _n\varphi ^n$$ F ( φ ) = κ + ξ n φ n . Considering the trajectories in the r– $$n_s$$ n s plane from the Planck data, we find the constraints on the parameter space in our model.