V. I. Afonso, G. J. Olmo, D. Rubiera-Garcia
We show that the space of solutions of a wide class of Ricci-based metric-affine theories of gravity can be put into correspondence with the space of solutions of general relativity (GR). This allows us to use well-established methods and results from GR to explore new gravitational physics beyond it.
Physical Review D
Volume 97, Issue 2, Page 6