Sign changeable coupled ghost dark fluid in the realization of cosmological bounce inflation

In this paper, we determine the exact solutions of viscous ghost models in sign-changeable interaction scenarios for two choices of bouncing scale factor, assuming the existence of viscous interacting fluid across the flat Friedmann-Robertson-Walker universe in the form of ghost dark energy and pressure-less dark matter. The study demonstrates how the cosmological parameters evolve in viscous sign-changeable interacting scenarios to see the transition time frame. Next, a bounce inflation model is investigated, including the tensor-to-scalar ratio, scalar spectral index, and slow-roll parameters analytical results. Since inflation is usually associated with scalar fields, the study looked at a possible relationship between sign-changeable interacting ghost dark fluids and scalar field models. Lastly, the applicability of the generalized second law (GSL) of thermodynamics is examined for the scenarios that are being studied.