# Induced gravity effect on inflationary parameters in an holographic   cosmology

**Authors:** Aatifa Bargach, Farida Bargach, Ahmed Errahmani, Taoufik Ouali

arXiv: 1904.06282 · 2020-04-21

## TL;DR

This paper explores how induced gravity corrections in holographic cosmology influence inflationary parameters, comparing scalar and tachyon field models against Planck2018 data in a slow-roll framework.

## Contribution

It introduces a detailed analysis of inflationary parameters with induced gravity effects in holographic cosmology for scalar and tachyon fields, aligning theoretical predictions with observational data.

## Key findings

- Good agreement with Planck2018 data for both models
- Modified inflationary parameters due to correction terms
- Validation of slow-roll regime in holographic context

## Abstract

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.

## Full text

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## Figures

53 figures with captions in the complete paper: https://tomesphere.com/paper/1904.06282/full.md

## References

46 references — full list in the complete paper: https://tomesphere.com/paper/1904.06282/full.md

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Source: https://tomesphere.com/paper/1904.06282