The Cosmological Behavior And The Statefinder Diagnosis For The New Tsallis Agegraphic Dark Energy

In this work, we have considered the recently proposed new Tsallis agegraphic dark energy (NTADE) model [Mod. Phys. Lett. A 34, 1950086 (2019)] within the framework of a flat Friedmann-Robertson-Walker (FRW) Universe by taking various values of the parameter delta. The NTADE model shows the current phase transition of the Universe from decelerated to accelerated phase. The NTADE equation of state (EoS) parameter shows a rich behavior as it can be quintessence-like or phantom-like depending on the value of delta. For discriminating the NTADE model from Lambda CDM, we have plotted the statefinder parameters r(z), s(z) and (r,s), (r,q) pair. The NTADE model shows distinct evolutionary trajectories of their evolution in (r,s) and (r,q) plane. An analysis using the snap parameter and the omega D - omega D ' pair dynamical analysis have also been performed.