Warm-Intermediate inflationary universe model

TL;DR

This paper explores warm inflation models with intermediate expansion, analyzing conditions for realization in different regimes, using specific potentials, and constraining parameters with WMAP data.

Contribution

It introduces a detailed analysis of warm inflation with intermediate expansion using novel potentials and derives conditions for model realizability in various dissipative regimes.

Findings

Models are consistent with WMAP data

Conditions for weak and strong dissipative regimes are established

Inflaton potentials are specified as negative-power-law and logarithmic powers

Abstract

Warm inflationary universe models in the context of intermediate expansion, between power law and exponential, are studied. General conditions required for these models to be realizable are derived and discussed. This study is done in the weak and strong dissipative regimes. The inflaton potentials considered in this study are negative-power-law and powers of logarithms, respectively. The parameters of our models are constrained from the WMAP three and five year data.