Cosmological structure growth in energy-momentum squared gravity

Alvaro de la Cruz-Dombriz, Peter K. S. Dunsby, Payel Sarkar

We investigate the cosmological evolution of matter perturbations in the modified gravity model $f(R,T^2)$, where $T^2=T_{\hat{I}¼\hat{I}½}{T}^{\hat{I}¼\hat{I}½}$ denotes the quadratic contraction of the en…