Energy Conditions in Extended Gravity
arXiv:2206.05114 · doi:10.1088/1402-4896/acaa0d
Abstract
In this paper, we consider the flat Friedmann Lematre Robertson-Walke metric in the presence of perfect fluid models and extended gravity (where is the Ricci scalar, is the Gauss Bonnet invariant and stands for trace of energy momentum tensor). In this context, we assume some specific realistic models configuration that could be used to explore the finite-time future singularities that arise in late-time cosmic accelerating phases. In this scenario, we choose the most recent estimated values for the Hubble, deceleration, snap and jerk parameters to develop the viability and bounds on the models parameters induced by different energy conditions.
arXiv commenttexts modified, typos corrected, version accepted for publication/published in Physica Scripta
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