Dynamics of Bianchi I Universe with Magnetized Anisotropic Dark Energy

TL;DR

This paper explores the evolution of a Bianchi I universe with anisotropic dark energy and magnetic fields, finding that the universe remains anisotropic over time.

Contribution

It provides exact solutions for Bianchi I cosmology with magnetized anisotropic dark energy, highlighting persistent anisotropy.

Findings

Universe remains anisotropic throughout evolution

Magnetic field influences anisotropic behavior

Exact solutions under specific expansion-shear conditions

Abstract

We study Bianchi type $I$ cosmological model in the presence of magnetized anisotropic dark energy. The energy-momentum tensor consists of anisotropic fluid with anisotropic EoS $p=\omega{\rho}$ and a uniform magnetic field of energy density $\rho_B$. We obtain exact solutions to the field equations using the condition that expansion is proportional to the shear scalar. The physical behavior of the model is discussed with and without magnetic field. We conclude that universe model as well as anisotropic fluid do not approach isotropy through the evolution of the universe.