Power law inflation with a non-minimally coupled scalar field in light of Planck 2015 data: the exact versus slow roll results

Carlos Gonzalez, Ramón Herrera

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

We study the power law inflation in the context of non-minimally coupled to the scalar curvature. We analyze the inflationary solutions under an exact analysis and also in the slow roll approximations. In both solutions, we consider the recent data from Planck 2015 data to constraint the parameters in our model. In this framework, we find that in the slow roll approximations the spectral scalar index nS>1$n_{S} > 1$, during the power law inflation.

Original languageEnglish
Article number31
JournalAstrophysics and Space Science
Volume358
Issue number2
DOIs
StatePublished - 23 Aug 2015
Externally publishedYes

Keywords

  • Cosmological perturbations
  • Inflation

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