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Induced gravity effect on inflationary parameters in an holographic cosmology

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arxiv 1904.06282 v2 pith:2D4XCQM4 submitted 2019-04-12 hep-th gr-qc

Induced gravity effect on inflationary parameters in an holographic cosmology

Aatifa Bargach , Farida Bargach , Ahmed Errahmani , Taoufik Ouali This is my paper
classification hep-th gr-qc
keywords parametersinflationaryscalartachyoncorrectioncosmologyfieldgravity
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We investigate observational constraints on inflationary parameters in the context of an holographic cosmology with an induced gravity correction. We consider two situations where a universe is firstly filled with a scalar field and secondly with a tachyon field. Both cases are investigated in a slow-roll regime. We adopt a quadratic potential and an exponential potential for the scalar and the tachyon inflation respectively. In this regard, the standard background and perturbative parameters characterizing the inflationary era are modified by correction terms. We show a good agreement between theoretical model parameters and Planck2018 observational data for both scalar and tachyon fields.

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