Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2010-02-26
Living Rev. Rel. 13: 3, 2010
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
156 pages, 14 figures, Invited review article in Living Reviews in Relativity, Published version, Comments are welcome
Scientific paper
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.
de Felice Antonio
Tsujikawa Shinji
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