Viscous Fluid Holographic Bounce

TL;DR

This paper explores bounce cosmological models with viscous fluids using holographic cutoffs, deriving analytical expressions and demonstrating the connection between viscous fluid bounces and holographic bounces.

Contribution

It introduces a holographic approach to viscous fluid bounce models with new analytical expressions for infrared cutoffs.

Findings

Analytical expressions for infrared cutoffs at the bounce.

Demonstration of the relationship between viscous fluid and holographic bounces.

Extension of holographic cutoffs to different scale factor forms.

Abstract

We investigate bounce cosmological models in the presence of a viscous fluid, making use of generalized holographic cutoffs introduced by Nojiri and Odintsov (2017). We consider both an exponential, a power-law, and a double exponential form for the scale factor. By use of these models we calculate expressions for infrared cutoffs analytically, such that they correspond to the particle horizon at the bounce. Finally we derive the energy conservation equation, from the holographic point of view. In that way the relationship between the viscous fluid bounce and the holographic bounce is demonstrated.