A new class of holographic dark energy models in conharmonically flat space-time

摘要

In this paper, we have obtained general exact solutions of the Einstein's field equations from the use of conharmonically fiat space in relation to a isotropic and spatially homogeneous Friedmann-Robertson-Walker (FRW) model by taking Granda and Oliveros IR cut-off and also by considering the cosmological scale factor in the form of hybrid expansion law (HEL). We investigated the derived model with the help of evolutionary trajectories of deceleration parameter, equation of state (EoS) parameter, energy densities of matter and dark energy, energy density parameters of matter and dark energy, for which model shows suitable behaviour. We also study classical stability of the model by analyzing the squared sound speed, which shows that the model is stable initially. For dynamical analysis of the model, the statefinder diagnostic and omega(D) - omega(D) pair analysis were performed. Additionally, we also plan to reconcile the dark energy by a method of reconstructing the evolution of the scalar field potential. For this analysis, we take into account the quintessence field for this reconstruction.