Diagnosing Tsallis holographic dark energy models with statefinder and ω−ω′ pair
Abstract
A useful method, known as statefinder diagnostic, which may differentiate one dark energy (DE) model from others is applied in this work to a holographic dark energy (HDE) model from Tsallis entropy, called the Tsallis holographic dark energy (THDE) model. The evolutionary trajectories of this model are plotted in the statefinder parameter — planes and ω−ω′ plane, and it is observed that the parameter δ of this model plays a magnificent role from the statefinder and ω−ω′ plane viewpoints. Eventually, the evolutionary trajectories are plotted considering two different values of THDE energy density (Ω0T), Ω0T=0.69, in the light of Planck 2018 results VI base-LCDM cosmology and Ω0T=0.73, in the light of SNe + BAO + OHD + CMB observation data.
