Abstract
Over the past decade, f (R) theories have been extensively studied as one of the simplest modifications to General Relativity. In this article we review various applications of f (R) theories to cosmology and gravity - such as inflation, dark energy, local gravity constraints, cosmological perturbations, and spherically symmetric solutions in weak and strong gravitational backgrounds. We present a number of ways to distinguish those theories from General Relativity observationally and experimentally. We also discuss the extension to other modified gravity theories such as Brans-Dicke theory and Gauss-Bonnet gravity, and address models that can satisfy both cosmological and local gravity constraints.
Original language | English |
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Article number | 3 |
Journal | Living Reviews in Relativity |
Volume | 13 |
DOIs | |
Publication status | Published - 2010 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)