Modified Holographic Dark Energy in Non-flat Kaluza-Klein Universe with Varying G

TL;DR

This paper explores the evolution of modified holographic dark energy with a varying gravitational constant G in a non-flat Kaluza-Klein universe, analyzing its implications for dark energy eras and thermodynamics.

Contribution

It introduces a model of holographic dark energy with variable G in a non-flat Kaluza-Klein universe, examining its dynamics and thermodynamic properties.

Findings

Universe remains in different dark energy eras in both scenarios

Generalized second law of thermodynamics holds in this model

Statefinder parameters align with the ΛCDM model limit

Abstract

The purpose of this paper is to discuss the evolution of modified holographic dark energy with variable $G$ in non-flat Kaluza$-$Klein universe. We consider the non-interacting and interacting scenarios of the modified holographic dark energy with dark matter and obtain the equation of state parameter through logarithmic approach. It turns out that the universe remains in different dark energy eras for both cases. Further, we study the validity of the generalized second law of thermodynamics in this scenario. We also justify that the statefinder parameters satisfy the limit of $\Lambda$CDM model.