Kaluza-Klein bulk viscous fluid cosmological models and the validity of the second law of thermodynamics in $f(R,T)$ gravity

G. C. Samanta, R. Myrzakulov, Parth Shah

The authors considered the bulk viscous fluid in $f(R,T)$ gravity within the framework of Kaluza-Klein space time. The bulk viscous coefficient $(\xi )$ expressed as $ξ=ξ_0+ξ_1\frac{…