Statefinder hierarchy of Kaniadakis holographic dark energy with composite null diagnostic

Abstract

We investigate Kaniadakis holographic dark energy (KHDE) model taking the apparent horizon as the IR cutoff in a flat Friedmann-Lemaître-Robertson-Walker (FLRW) universe. We apply variant dark energy (DE) diagnostic tool to study KHDE model in flat universe with different values of the constant [Formula: see text] and Kaniadakis entropy parameter [Formula: see text]. We use the tools statefinder hierarchy [Formula: see text], fractional growth parameter [Formula: see text] and composite null diagnostic (CND), which is blend of [Formula: see text] and [Formula: see text]. The evolution of trajectories of [Formula: see text] and [Formula: see text] depicts that there occur degeneracies in early time and also in the far future, whereas, in between these two extremes they are discriminated distinctly. The analysis of the present work shows that by the inclusion of fractional growth parameter [Formula: see text] with statefinder hierarchy (CND) degeneracy is removed reasonably, particularly more in the low redshift region.