Anisotropic Cloud String Cosmological Model With Bianchi Type-I Space-Time in General Relativity

TL;DR

This paper develops an anisotropic Bianchi type I cosmological model with cloud strings in general relativity, showing the universe begins with a big bang, and string effects diminish over time, leaving a particle-dominated universe.

Contribution

It provides exact solutions to Einstein's equations for a cloud string universe with anisotropy, highlighting the evolution of string tension and particle density over cosmic time.

Findings

Universe starts with a big bang.

String tension density decreases over time.

Particle density increases as strings vanish.

Abstract

Anisotropic cloud string cosmological model with Bianchi type I space time is investigated in the context of general relativity. The exact solutions of Einstein field equations are obtained with when the source for energy momentum tensor is generated by a cloud of strings with particles attached to them. The dynamical and physical properties of the model universe are discussed by comparing with the present observational findings. The interesting feature obtained here is that our model universe starts with a big bang and as time passes both particle density and string tension density decreases with expansion of our Universe so that in the late time string vanishes and thus leaving only the particles.