Cosmographic Analysis of Holographic Non-Zero Torsion Framework

Abstract

In this thesis, we use the cosmographic approach to discuss Friedmann- like space-time in the presence of torsion. For this, we explore equations of motion that explain creation in an isotropic and homogeneous cosmic backdrop with non-zero torsion. Here, we consider the energy density of holographic dark energy model ρd = 3c2(z)M2 p L−2. We examine this DE model with both constant and variable holographic length-scale in terms of Hubble parameter to determine the best fit scale. The interaction between dark sector components is taken to evaluate cosmographic parameters, like Hubble, equation of state, deceleration, jerk, snap, lerk the statefinder pa- rameters. We consider four c(z) parameterizations, which are Chevalier- Polarski-Linder, Jassal-Bagla-Padmanabhan, Wetterich and Ma-Zhang for both cases. We obtain consistent results for specific choices of constant parameters in the underlying scenario.