TY  - JOUR
AU  - Olmo, G. J.
AU  - Rubiera-Garcia, D.
PY  - 2022
DA  - 2022//
TI  - Some recent results on Ricci-based gravity theories
T2  - Int. J. Mod. Phys. D
JO  - International Journal of Modern Physics D
SP  - 2240012 - 15pp
VL  - 31
PB  - World Scientific Publ Co Pte Ltd
KW  - Metric-affine gravity
KW  - scalar fields
KW  - stellar models
KW  - junction conditions
KW  - compact objects
AB  - In this paper, metric-afline theories in which the gravity Lagrangian is built using (projectively invariant) contractions of the Ricci tensor with itself and with the metric (Ricci-based gravity theories, or RBGs for short) are reviewed. The goal is to provide a contextualized and coherent presentation of some recent results. In particular, we focus on the correspondence that exists between the field equations of these theories and those of general relativity, and comment on how this can be used to build new solutions of physical interest. We also discuss the formalism of junction conditions in the f (R) case, and provide a brief summary on current experimental and observational bounds on model parameters.
SN  - 0218-2718
UR  - https://arxiv.org/abs/2203.04116
UR  - https://doi.org/10.1142/S0218271822400120
DO  - 10.1142/S0218271822400120
LA  - English
N1  - WOS:000848888900001
ID  - Olmo+Rubiera-Garcia2022
ER  -