Study of cosmic parameters and thermodynamics of higher dimensional Einstein Chern–Simons cosmology through Barrow entropy

In this paper, we assume a flat FRW universe in the context of the five-dimensional Einstein Chern–Simons theory of gravity. We take into account the Barrow holographic dark energy density with the Hubble horizon is the boundary of the universe to study the cosmic evolution of the universe. We discuss various cosmological parameters such as the coincidence parameter, density parameter, equation of state parameter, and deceleration parameter. Moreover, we explore thermal stability within the context of this scenario. We consider the Barrow holographic dark energy model with both interacting and non-interacting scenarios of dark components to evaluate these parameters and thermal stability. We plot the coincidence parameter, which displays a DE-dominated phase of the universe. It is interesting to mention here that we obtain some consistent results representing the accelerated expansion of the universe.