Non-flat FRW universe version of Tsallis holographic dark energy in specific modified gravity
Abstract
Among various dark energy models, Tsallis holographic dark energy model shows the dynamical enthusiasm to describe the transition phase of the universe. In this paper, we consider Tsallis holographic dark energy with event and apparent horizon as an infrared cutoff in the framework of dynamical Chern–Simon modified gravity and non-flat FRW universe. We explore Hubble, equation of state and deceleration parameters and found that Hubble parameter lies in the range 80+60−60 and 120+40−40 for event and apparent horizon trajectories, respectively. It is mentioned here that the equation of state parameter lies within the range −1.3∓0.4 (event) and −1.125∓0.125 (apparent). Also, deceleration parameter for both cases show accelerated and decelerated phase of universe as well as cosmological constant. Moreover, we also checked the stability of our model through square speed of sound, which shows the positive behavior (exhibits the stability of the model). Finally, we observe that the generalized second law of thermodynamics remains valid in both cases of horizon.
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