Isotropization of symmetric teleparallel gravity with observational constraints

Abstract

In this paper, we examine the homogeneous and isotropic flat Universe in the frame of symmetric teleparallel gravity say [Formula: see text] gravity (where [Formula: see text] is the nonmetricity scalar). In this work, we parametrized the field equations with the help of Hubble’s parameter defined as [Formula: see text], where [Formula: see text] and [Formula: see text] are model/free parameters which are constrained with updated 57 data points of the Hubble data set within the redshift range [Formula: see text]. For this, we have used a Markov Chain Monte Carlo Technique (MCMCT). Some physical parameters of the model are discussed. In addition, we analyze the jerk parameter and the statefinder parameters and we also study the energy conditions to assess the compatibility of our model with dark energy models; we determine that the Strong Energy Condition (SEC) is violated due to the fact that the Universe is currently accelerating.