Interacting Modified Holographic Dark Energy in Kaluza-Klein Universe

TL;DR

This paper investigates the dynamics of interacting modified holographic dark energy and dark matter with a variable gravitational constant in a Kaluza-Klein universe, analyzing thermodynamics and observational consistency.

Contribution

It introduces a model of interacting holographic dark energy with varying G in Kaluza-Klein cosmology, exploring its evolution and thermodynamic validity.

Findings

Equations of state and evolution are derived and analyzed.

The model's results are consistent with current observations.

The generalized second law of thermodynamics holds in this scenario.

Abstract

The interaction of modified holographic dark energy and dark matter with varying $G$ in flat Kaluza Klein universe is considered. Further, we take infrared cutoff scale $L$ as future event horizon. In this scenario, equations of state parameter as well as evolution are explored. We also check the validity of the generalized second law of thermodynamics. It is interesting to mention here that our results show consistency with the present observations.