Warm Inflation in $f(\mathcal{G})$ Theory of Gravity

TL;DR

This paper investigates warm inflation within $f( ext{G})$ gravity, deriving field equations and analyzing inflationary parameters to show compatibility with observational data.

Contribution

It develops a framework for warm inflation in $f( ext{G})$ gravity using scalar fields, including detailed calculations of inflationary parameters under various conditions.

Findings

Inflationary parameters align with Planck data.

Model supports both constant and variable dissipation factors.

Compatibility with observational constraints is demonstrated.

Abstract

The aim of this paper is to explore warm inflation in the background of $f(\mathcal{G})$ theory of gravity using scalar fields for the FRW universe model. We construct the field equations under slow-roll approximations and evaluate the slow-roll parameters, scalar and tensor power spectra and their corresponding spectral indices using viable power-law model. These parameters are evaluated for a constant as well as variable dissipation factor during intermediate and logamediate inflationary epochs. We also find the number of e-folds and tensor-scalar ratio for each case. The graphical behavior of these parameters proves that the isotropic model in $f(\mathcal{G})$ gravity is compatible with observational Planck data.