Dark Viscous Fluid coupled with Dark Matter and future singularity

TL;DR

This paper investigates how viscous fluids coupled with dark matter can lead to a stable universe model that avoids future singularities, exploring inhomogeneous fluids and their implications.

Contribution

It introduces a model where viscous cosmic fluids coupled with dark matter stabilize the universe against future singularities, extending previous models with inhomogeneous fluids.

Findings

Coupling viscous fluids with dark matter can prevent future singularities.

Inhomogeneous fluids offer broader scenarios for stable universe evolution.

The model supports a stable de Sitter universe with viscous effects.

Abstract

We study effects of viscous fluid coupled with dark matter in our universe. We consider bulk viscosity in the cosmic fluid and we suppose the existence of a coupling between fluid and dark matter, in order to reproduce a stable de Sitter universe protected against future-time singularities. More general inhomogeneous fluids are studied related to future singularities.