Cosmological Implications of the Generalized Entropy Based Holographic Dark Energy Models in Dynamical Chern-Simons Modified Gravity

Recently, Tsallis, R ' enyi, and Sharma-Mittal entropies have widely been used to study the gravitational and cosmological setups. We consider a flat FRWuniversewith linear interactionbetween dark energy and darkmatter. We discuss the dark energymodels using Tsallis, R ' enyi, and Sharma-Mittal entropies in the framework of Chern-Simons modified gravity. We explore various cosmological parameters (equation of state parameter, squared sound of speed) and cosmological plane (.... -......, where...... is the evolutionary equation of state parameter). It is observed that the equation of state parameter gives quintessence-like nature of the universe in most of the cases. Also, the squared speed of sound shows stability of Tsallis and R ' enyi dark energy model but unstable behavior for Sharma-Mittal dark energy model. The.... -...... plane represents the thawing region for all dark energy models.