Equivalence of matter-type modified gravity theories to general relativity with nonminimal matter interaction

Özgür Akarsu, Mariam Bouhmadi-López, Nihan Katırcı +3

In this study, we first establish that gravity models incorporating matter-related terms, such as $f({\mathcal{L}}_{\mathrm{m}})$, $f(g_{\mu \nu }{T}^{\mu \nu })$, and $f(T_{\mu \nu }{T}^{\mu \nu })$, into the usu…