LRS Bianchi I cosmological model with strange quark matter in f (R, T) gravity theory

A plane-symmetric Bianchi-I model is explored in f (R, T) gravity, where R is the Ricci scalar and T is the trace of the energy-momentum tensor. The model with strange quark matter (SQM) is studied in f (R, T) theory. Exact solutions are obtained for a particular form of f (R, T) = R + 2λT, under the assumption of the expansion scalar proportional to the shear scalar, and a special law of variation of the Hubble parameter. The model presents a cosmological scenario of transition from early deceleration to late-time acceleration. It is very interesting to note that even in the absence of f (R, T) gravity, SQM accelerates the universe. This model illustrates that SQM can be considered as an alternative to dark energy.