PALATINI APPROACH TO MODIFIED GRAVITY: f(R) THEORIES AND BEYOND

被引：600

作者：

Olmo, Gonzalo J. ^{[1
,2
,3
]}

机构：

[1] Univ Valencia CSIC, Dept Fis Teor, Valencia, Spain

[2] Univ Valencia CSIC, Ctr Mixto, IFIC, Valencia, Spain

[3] Univ Valencia, Fac Fis, E-46100 Valencia, Spain

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2011年 / 20卷 / 04期

关键词：

Palatini formalism; modified gravity; cosmic speed-up; dark energy; dark matter; MOND; quantum gravity phenomenology; Hamiltonian formulation; stellar structure; Cauchy problem; solar system tests; PROBE WMAP OBSERVATIONS; METRIC-AFFINE THEORIES; EXTENDED THEORIES; VARIATIONAL PRINCIPLE; CAUCHY-PROBLEM; COSMOLOGICAL PERTURBATIONS; COVARIANT CONSERVATION; GENERAL-RELATIVITY; EINSTEIN EQUATIONS; ENERGY-MOMENTUM;

D O I：

10.1142/S0218271811018925

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：413 / 462

页数：50

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