Warm Gauge-Flation

TL;DR

This paper explores warm gauge-flation, a model where non-abelian gauge fields drive inflation with a mechanism ending inflation, providing analytical solutions compatible with Planck data.

Contribution

It introduces a warm inflation scenario for gauge-flation, deriving conditions and solutions in intermediate and logamediate regimes, and compares predictions with observations.

Findings

Model ends inflation via warm mechanism.

Compatible with Planck observational data.

Provides analytical expressions for inflationary parameters.

Abstract

Non-abelian gauge field inflation is studied in the context of warm inflation scenario. We introduce this scenario as a mechanism that gives an end for gauge-flation model. Slow-roll parameters and perturbation parameters are presented for this model. We find the general conditions which are required for this model to be realizable in slow-roll approximation. We also develop our model in the context of intermediate and logamediate scenarios which are exact solutions of inflationary field equation in the Einstein theory. General expressions of slow-roll parameters, tensor-scalar ratio and scalar spectral index are presented in terms of inflaton field for these two cases. Our model is compatible with recent observational data from Planck satellite.