Scalar warm inflation in holographic cosmology

TL;DR

This paper explores warm inflation within holographic cosmology, analyzing different dissipative regimes and constraining models with Planck data, finding some models consistent while others are ruled out.

Contribution

It introduces a holographic cosmology framework for warm inflation, analyzing intermediate inflation solutions and constraining models with observational data.

Findings

Three models are consistent with Planck data.

One model is ruled out by observations.

Intermediate inflation is an exact solution in both general relativity and holographic setup.

Abstract

We consider warm inflation in the context of holographic cosmology. The weak and the strong dissipative regime are analysed in the slow-roll approximation and within what is known as intermediate inflation. For an appropriate choice of the equation of state, the intermediate inflation is not only an exact solution in general relativity, but also in the holographic setup considered in this paper. Within this approach several dissipative and physically relevant functions are considered. We constrain our model using the latest Planck data. We conclude that three of the models analysed are consistent with Planck data for some ranges of the model parameters. However, one of them is ruled out by the observations.