Kaluza-Klein String Cosmological Model in f(R; T) Theory of Gravity

TL;DR

This paper develops a Kaluza-Klein string cosmological model within f(R; T) gravity, deriving solutions with a time-varying deceleration parameter and analyzing its physical and dynamical properties.

Contribution

It introduces a novel Kaluza-Klein string cosmological model in f(R; T) gravity with solutions based on a time-varying deceleration parameter.

Findings

Cosmological parameters vary over time as shown graphically.

The model exhibits specific physical and dynamical behaviors.

Solutions are consistent with observational cosmological features.

Abstract

In this paper we have studied Kaluza-Klein string cosmological model within the framework of f(R; T) theory of gravity, where R is the Ricci scalar and T is the trace of the stress energy momentum tensor. We have obtained the solution of the corresponding field equations by using a time varying deceleration parameter. We also discussed various physical and dynamical properties of the model. The variation of different cosmological parameters are shown graphically for specific values of the parameters of the model.