مشخصات پژوهش

We study the cosmological consequences of the ghost models of dark energy (DE) in the framework of Hoˇrava–Lifshitz gravity. We calculate the equation-of-state parameter, the deceleration parameter, the classical stability and the dimensionless density parameter of the models in both noninteracting and interacting scenarios. We find that, for some values of the parameter, this model can admit a transition from the deceleration phase to the accelerated phase around z ≈ 0.6, while at the late time (z →−1) we have ωD →−1 meaning that this model mimics a cosmological constant. We find that in the setup of Hoˇrava–Lifshitz gravity, ghost dark energy (GDE) models are classically unstable. We observe that unlike the generalized ghost dark energy (GGDE), the ghost dark energy cannot provide proper behavior for all the cosmological parameters simultaneously, with the same values of the models’ couplings