Two fluid anisotropic dark energy models in a scale invariant theory

TL;DR

This paper explores two anisotropic dark energy models within a scale invariant gravity framework, revealing evolving pressure anisotropy and phantom behavior, with bulk viscosity having minimal impact on cosmic evolution.

Contribution

It introduces two new anisotropic dark energy models in a scale invariant gravity context, highlighting pressure anisotropy and phantom dynamics.

Findings

Models exhibit evolving pressure anisotropy.

Dark energy models favor phantom behavior.

Bulk viscosity has negligible effect on cosmic dynamics.

Abstract

Some anisotropic Bianchi V dark energy models are investigated in a scale invariant theory of gravity. We consider two non interacting fluids such as dark energy and a bulk viscous fluid. Dark energy pressure is considered to be anisotropic in different spatial directions. A dynamically evolving pressure anisotropy is obtained from the models. The models favour phantom behaviour. It is observed that, in presence of dark energy, bulk viscosity has no appreciable affect on the cosmic dynamics.