Warm-Intermediate inflationary universe model in braneworld cosmologies

TL;DR

This paper investigates warm-intermediate inflation models within braneworld cosmologies, analyzing scalar potentials, perturbations, and observational constraints across weak and strong dissipative regimes.

Contribution

It introduces specific forms of scalar potentials and dissipation coefficients, deriving conditions for model realization in braneworld scenarios.

Findings

Scalar potentials evolve as power-law and logarithmic functions.

Constraints on model parameters are obtained from recent astronomical data.

Perturbation analyses are performed for both dissipative regimes.

Abstract

Warm-intermediate inflationary universe models in the context of braneworld cosmologies, are studied. This study is done in the weak and strong dissipative regimes. We find that, the scalar potentials and dissipation coefficients in terms of the scalar field, evolves as type-power-law and powers of logarithms, respectively. General conditions required for these models to be realizable are derived and discussed. We also study the scalar and tensor perturbations for each regime. We use recent astronomical observations to constraint the parameters appearing in the braneworld models.