Warm inflation on the brane

Abstract

In this paper, warm inflationary models on a brane scenario are studied. Here we considerslow-roll inflation and a high-dissipation regime in a high-energy scenario. Generalconditions required for these models to be realizable are derived. We describe scalarand tensor perturbations for these scenarios. Specifically we study the power-lawpotentials considering a dissipation parameter to be a constant on the one hand andϕ dependent on the other hand. We use recent astronomical observations to restrict theparameters appearing in our model.