Stability analysis of warm quintessential dark energy model

TL;DR

This paper analyzes a warm quintessential dark energy model using dynamical systems to demonstrate its viability for explaining both early inflation and late-time acceleration.

Contribution

It introduces a generalized exponential potential model that unifies early and late accelerated expansion phases with stability analysis.

Findings

Stable solutions are found for the model.

The model is viable for quintessential inflation.

Both analytical and numerical results support the model's stability.

Abstract

A dynamical system analysis is performed for a model of dissipative quintessential inflation realizing warm inflation at early primordial times and dissipative interations in the dark sector at late times. The construction makes use of a generalized exponential potential realizing both phases of accelerated expansion. A focus is given on the behavior of the dynamical system at late times and the analysis is exemplified by both analytical and numerical results. The results obtained demonstrate the viability of the model as a quintessential inflation model and in which stable solutions can be obtained.