Viscous Generalized Chaplygin Gas Interacting with f(R,T) gravity

Abstract

In this paper, we study in Friedmann-Robertson-Walker universe the interaction between the viscous generalized Chaplygin gas with $f(R,T)$ gravity, which is an arbitrary function of the Ricci scalar $R$ and the trace $T$ of the energy-momentum tensor. Assuming that the contents of universe is dominated by a generalized Chaplygin gas and dark energy, we obtained the modified Friedmann equations and also the time dependent energy density and pressure of dark energy due to the shear and bulk viscosities for three interacting models depending on an input parameter $Q$. Within the simple form of scale factor (power-law), we discuss the graphical representation of dark energy density parameter and investigate the shear and bulk viscosities effects on the accelerating expansion of the universe for each interacting model.

10 pages and 5 figures

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• Generalized Chaplygin gas and accelerating universe in $f(Q,T)$ gravity
• Models of Collapsing and Expanding Anisotropic Gravitating Source in $f(R,T)$ Theory of Gravity
• Interpretation of $f(\mathsf{R},\mathsf{T})$ gravity in terms of a conserved effective fluid
• A cosmological scenario from the Starobinsky model within the $f(R,T)$ formalism
• Cosmology with viscous generalized Chaplygin gas in $f(Q)$ gravity
• Modified Cosmic Chaplygin AdS Black Hole
• Mixed fluid cosmological model in $f(R,T)$ gravity