Tsallis holographic dark energy in Fractal Universe

TL;DR

This paper explores a Tsallis holographic dark energy model within a fractal universe framework, demonstrating its ability to account for the universe's late-time acceleration and compatibility with recent observational data.

Contribution

It introduces a novel interacting Tsallis holographic dark energy model in a fractal universe context and analyzes its cosmological implications and observational consistency.

Findings

Model describes current accelerating universe

Transition from deceleration to acceleration confirmed

Parameters compatible with latest observational data

Abstract

We study the cosmological consequences of interacting Tsallis holographic dark energy model in the framework of the fractal universe, in which, the Hubble radius is considered as the IR cut-off. We drive the equation of state (EoS) parameter, deceleration parameter and the evolution equation for the Tsallis holographic dark energy density parameter. Our study shows that this model can describe the current accelerating Universe in both noninteracting and interacting scenarios, and also a transition occurs from the deceleration phase to the accelerated phase, at the late time. Finally, we check the compatibility of free parameters of the model with the latest observational results by using the Pantheon supernovae data, eBOSS, 6df, BOSS DR12, CMB Planck 2015, Gamma-Ray Burst.