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

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.

22 pages, 8 figures, minor changes

References in corpus (10)

• Dark energy in modified Gauss-Bonnet gravity: late-time acceleration and the hierarchy problem
• Inflationary cosmology in modified gravity theories
• Warm Inflation and its Microphysical Basis
• Cosmological inflation in $F(R,\mathcal{G})$ gravity
• Inflationary universe from perfect fluid and $F(R)$ gravity and its comparison with observational data
• Dynamics of Logamediate Inflation
• Dissipation coefficients for supersymmetric inflatonary models
• Warped DGP model in warm intermediate inflation with a general dissipative coefficient in light of BICEP2 and Planck results
• Chaotic inflation in higher derivative gravity theories
• Early and Late-time Cosmic Acceleration in Non-minimal Yang-Mills-$f(G)$ Gravity

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