Cosmic Transit and Anisotropic Models in f(R,T) Gravity

Abstract

Accelerating cosmological models are constructed in a modified gravity theory dubbed as $f(R,T)$ gravity at the backdrop of an anisotropic Bianchi type-III universe. $f(R,T)$ is a function of the Ricci scalar $R$ and the trace $T$ of the energy-momentum tensor and it replaces the Ricci scalar in the Einstein-Hilbert action of General Relativity. The models are constructed for two different ways of modification of the Einstein-Hilbert action. Exact solutions of the field equations are obtained by a novel method of integration. We have explored the behaviour of the cosmic transit from an decelerated phase of expansion to an accelerated phase to get the dynamical features of the universe. Within the formalism of the present work, it is found that, the modification of the Einstein-Hilbert action does not affect the scale factor. However the dynamics of the effective dark energy equation of state is significantly affected.

13 pages, 4 figures

References in corpus (4)

• FRW Cosmology in F(R,T) gravity
• Cosmological solutions from Induced Matter Model applied to 5D f(R,T) gravity and the shrinking of the extra coordinate
• Dynamics of an Anisotropic Universe in $f(R,T)$ Theory
• A geometric method of constructing exact solutions in modified f(R,T)-gravity with Yang-Mills and Higgs interactions

Cited by in corpus (14)

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• A periodic varying deceleration parameter in $f(R,T)$ gravity
• Influence of $f(R)$ Models on the Existence of Anisotropic Self-Gravitating Systems
• Charged strange star in $f(R,T)$ gravity with linear equation of state
• Modelling Casimir Wormholes in Extended Gravity
• Observational constraints on the equation of state of viscous fluid in $f(R,T)$ gravity
• Constraining the $f(R,T)=R+2\lambda T$ cosmological model using recent observational data
• The constrained cosmological model in Lyra geometry
• Dynamical Instability of Spherical Anisotropic Sources in $f(R,T,R_{\mu \nu }{T}^{\mu \nu })$ Gravity
• Dynamical features of an anisotropic cosmological model
• Cosmological effects on $f(\bar{R},\bar{T})$ gravity through a non-standard theory
• Collapsing scenarios of K-essence generalized Vaidya spacetime under $f(\bar{R},\bar{T})$ gravity
• Growth of cosmic perturbations in the modified $f(R,T)$ gravity