Kaluza-Klein FRW type dark energy model with a massive scalar field

TL;DR

This paper explores a Kaluza-Klein cosmological model with dark energy and a massive scalar field, analyzing its dynamical behavior and key cosmological parameters to understand its physical implications.

Contribution

It introduces a novel solution to the Kaluza-Klein FRW model with a massive scalar field using a power law relation, providing new insights into dark energy dynamics.

Findings

The model predicts an accelerating universe consistent with observations.

The equation of state parameter indicates dark energy dominance.

Cosmological parameters evolve in a physically plausible manner.

Abstract

In this investigation we discuss the dynamical aspects of Kaluza-Klein FRW type cosmological model in the presence of dark energy fluid and an attractive massive scalar field. The field equations are solved using a power law between the average scale factor and the scalar field to reduce the mathematical complexity. We have presented the corresponding dark energy model. Important cosmological parameters like equation of state (EoS) parameter, the deceleration parameter, the density parameter and the jerk parameter are evaluated. The physical behavior of the parameters is also discussed.