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

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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 \(n_{S} > 1\), during the power law inflation.

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Acknowledgements

CG and RH dedicate this article to the memory of the Dr. Sergio del Campo (R.I.P.). RH was supported by COMISION NACIONAL DE CIENCIAS Y TECNOLOGIA through FONDECYT Grant N0 1130628 and DI-PUCV N0 123.724.

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Correspondence to Ramón Herrera.

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S. del Campo is deceased.

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del Campo, S., Gonzalez, C. & Herrera, R. Power law inflation with a non-minimally coupled scalar field in light of Planck 2015 data: the exact versus slow roll results. Astrophys Space Sci 358, 31 (2015). https://doi.org/10.1007/s10509-015-2414-4

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  • DOI: https://doi.org/10.1007/s10509-015-2414-4

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