Metric-affine f(R)-gravity with torsion: an overview

被引：44

作者：

Capozziello, Salvatore ^{[1
,2
]}

Vignolo, Stefano ^{[3
]}

机构：

[1] Univ Naples Federico 2, Dipartimento Sci Fis, I-80126 Naples, Italy

[2] Compl Univ, Ist Nazl Fis Nucl, Sez Napoli, I-80126 Naples, Italy

[3] Univ Genoa, DIPTEM Sez Metodi & Modelli Matemat, I-16129 Genoa, Italy

来源：

ANNALEN DER PHYSIK | 2010年 / 19卷 / 3-5期

关键词：

Extended gravity; torsion; Palatini formalism; initial value problem; F(R) GRAVITY; MANIFOLDS; ENERGY; MODELS;

D O I：

10.1002/andp.201010420

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Torsion and curvature could play a fundamental role in explaining cosmological dynamics f(R)-gravity with torsion is an approach aimed to encompass in a comprehensive scheme all the Dark Side of the Universe (Dark Energy and Dark Matter). We discuss the field equations in empty space and in presence of perfect fluid matter taking into account the analogy with the metric-affine formalism. The result is that the extra curvature and torsion degrees of freedom can be dealt under the standard of an effective scalar field of fully geometric origin. The initial value problem for such theories is also discussed. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：238 / 248

页数：11

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