TY  - JOUR
AU  - Olmo, G. J.
PY  - 2011
DA  - 2011//
TI  - Palatini approach to modified gravity: f(R) theories and beyond
T2  - Int. J. Mod. Phys. D
JO  - International Journal of Modern Physics D
SP  - 413
EP  - 462
VL  - 20
IS  - 4
PB  - World Scientific Publ Co Pte Ltd
KW  - Palatini formalism
KW  - modified gravity
KW  - cosmic speed-up
KW  - dark energy
KW  - dark matter
KW  - MOND
KW  - quantum gravity phenomenology
KW  - Hamiltonian formulation
KW  - stellar structure
KW  - Cauchy problem
KW  - solar system tests
AB  - We review the recent literature on modified theories of gravity in the Palatini approach. After discussing the motivations that lead to consider alternatives to Einstein's theory and to treat the metric and the connection as independent objects, we review several topics that have been recently studied within this framework. In particular, we provide an in-depth analysis of the cosmic speed-up problem, laboratory and solar system tests, the structure of stellar objects, the Cauchy problem, and bouncing cosmologies. We also discuss the importance of going beyond the f(R) models to capture other phenomenological aspects related with dark matter/energy and quantum gravity.
SN  - 0218-2718
UR  - http://arxiv.org/abs/1101.3864
UR  - https://doi.org/10.1142/S0218271811018925
DO  - 10.1142/S0218271811018925
LA  - English
N1  - WOS:000290228200001
ID  - Olmo2011
ER  -