Nonlinear $\sigma$-models in the Eddington-inspired Born-Infeld Gravity

J. R. Nascimento, Gonzalo J. Olmo, P. J. Porfírio +2

In this paper we consider two different nonlinear $\sigma$-models minimally coupled to Eddington-inspired Born-Infeld gravity. We show that the resultant geometries represent minimal mo…