Viability of bouncing cosmology in energy-momentum-squared gravity

Ahmed H. Barbar, Adel M. Awad, Mohammad T. AlFiky

We analyze the early-time isotropic cosmology in the so-called energy-momentum-squared gravity (EMSG). In this theory, a $T_{\mu \nu }{T}^{\mu \nu }$ term is added to the Einstein-Hilbert action…