Higher-order gravity and the cosmological background of gravitational waves

被引：50

作者：

Capozziello, Salvatore ^{[1
,2
]}

De laurentis, Mariafelicia ^{[3
,4
]}

Francaviglia, Mauro ^{[5
,6
]}

机构：

[1] Univ Naples Federico II, Dipartimento Sci Fisiche, I-80126 Naples, Italy

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

[3] Politecn Torino, Dipartimento Fis, I-10129 Turin, Italy

[4] Ist Nazl Fis Nucl, Sez Torino, I-10129 Turin, Italy

[5] Univ Turin, Dipartimento Matemat, I-10123 Turin, Italy

[6] Ist Nazl Fis Nucl, Sez Torino, I-10123 Turin, Italy

来源：

ASTROPARTICLE PHYSICS | 2008年 / 29卷 / 02期

关键词：

extended theories of gravity; gravitational waves; cosmology;

D O I：

10.1016/j.astropartphys.2007.12.001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The cosmological background of gravitational waves can be tuned by the higher-order corrections to the gravitational Lagrangian. In particular, it can be shown that assuming R1+epsilon, where epsilon indicates a generic (eventually small) correction to the Hilbert-Einstein action in the Ricci scalar R, gives a parametric approach to control the evolution and the production mechanism of gravitational waves in the early Universe. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：125 / 129

页数：5

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