Exploration of Parameters in f(R,T) Gravity and Comparison with Type Ia Supernovae Data

Vincent R. Siggia, Eric D. Carlson, P. Lee Pryor

The expansion of the Universe in $f(R,T)$ gravity is studied. We consider functions of the form $f(R,T)=R+\lambda T^{\epsilon }$ where $\epsilon <1$. We find that for all models with $\epsilon <0$, the Universe tr…