Warm inflation on the brane

TL;DR

This paper investigates warm inflation models within a brane-world scenario, analyzing conditions, perturbations, and observational constraints for power-law potentials with different dissipation parameters.

Contribution

It introduces a detailed analysis of warm inflation on the brane, including perturbation descriptions and parameter restrictions based on recent astronomical data.

Findings

Derived conditions for warm inflation on the brane.

Analyzed scalar and tensor perturbations in these models.

Constrained model parameters using observational data.

Abstract

In this paper, warm inflationary models on a brane scenario are studied. Here we consider slow-roll inflation and high-dissipation regime in a high-energy scenario. General conditions required for these models to be realizable are derived. We describe scalar and tensor perturbations for these scenarios. Specifically we study power-law potentials considering a dissipation parameter to be a constant on the one hand and $\phi$ dependent on the other hand. We use recent astronomical observations to restrict the parameters appearing in our model.