Cosmological perfect fluids in higher-order gravity

被引：32

作者：

Capozziello, Salvatore ^{[1
,2
,3
]}

Mantica, Carlo Alberto ^{[4
,5
]}

Molinari, Luca Guido ^{[5
,6
]}

机构：

[1] Univ Napoli Federico II, Dipartimento Fis E Pancini, Naples, Italy

[2] Univ Monte S Angelo, Sez Napoli, Ist Nazl Fis Nucl, Edificio G,Via Cinthia, I-80126 Naples, Italy

[3] Tomsk State Univ Control Syst & Radioelect TUSUR, Lab Theoret Cosmol, Tomsk 634050, Russia

[4] IIS Lagrange, Via L Modignani 65, I-20161 Milan, Italy

[5] Ist Nazl Fis Nucl, Sez Milano, Via Celoria 16, I-20133 Milan, Italy

[6] Univ Milan, Dipartimento Fis A Pontremoli, Milan, Italy

来源：

GENERAL RELATIVITY AND GRAVITATION | 2020年 / 52卷 / 04期

关键词：

Higher-order gravity; Cosmology; Perfect fluids; 6TH-ORDER GRAVITY; EXTENDED THEORIES; INFLATION; MODELS;

D O I：

10.1007/s10714-020-02690-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We prove that in Robertson-Walker space-times (and in generalized Robertson-Walker spacetimes of dimension greater than 3 with divergence-free Weyl tensor) all higher-order gravitational corrections of the Hilbert-Einstein Lagrangian density F(R, R, horizontal ellipsis, kR)\have the form of perfect fluids in the field equations. This statement definitively allows to deal with dark energy fluids as curvature effects.

引用

页数：9

共 50 条

[1] Cosmological perfect fluids in higher-order gravity
Salvatore Capozziello
Carlo Alberto Mantica
Luca Guido Molinari
[J]. General Relativity and Gravitation, 2020, 52
[2] Stability of an isotropic cosmological singularity in higher-order gravity
Middleton, Jonathan
Barrow, John D.
[J]. PHYSICAL REVIEW D, 2008, 77 (10):
[3] Higher-order gravity and the cosmological background of gravitational waves
Capozziello, Salvatore
De laurentis, Mariafelicia
Francaviglia, Mauro
[J]. ASTROPARTICLE PHYSICS, 2008, 29 (02) : 125 - 129
[4] Further exact cosmological solutions to higher-order gravity theories
Clifton, T
Barrow, JD
[J]. CLASSICAL AND QUANTUM GRAVITY, 2006, 23 (09) : 2951 - 2962
[5] Gravitational collapse of homogeneous perfect fluids in higher order gravity theories
Giambo, Roberto
[J]. JOURNAL OF MATHEMATICAL PHYSICS, 2009, 50 (01)
[6] Cosmological perfect fluids in Gauss-Bonnet gravity
Capozziello, Salvatore
Mantica, Carlo Alberto
Molinari, Luca Guido
[J]. INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, 2019, 16 (09)
[7] Cosmological perfect-fluids in f(R) gravity
Capozziello, Salvatore
Mantica, Carlo Alberto
Molinari, Luca Guido
[J]. INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, 2019, 16 (01)
[8] Higher-order theories of gravity matched with large-scale structure and cosmological observations
Salvatore Capozziello
[J]. Journal of Russian Laser Research, 2010, 31 : 129 - 138
[9] HIGHER-ORDER THEORIES OF GRAVITY MATCHED WITH LARGE-SCALE STRUCTURE AND COSMOLOGICAL OBSERVATIONS
Capozziello, Salvatore
[J]. JOURNAL OF RUSSIAN LASER RESEARCH, 2010, 31 (02) : 129 - 138
[10] Charged fluids in higher order gravity
Naicker, Shavani
Maharaj, Sunil D.
Brassel, Byron P.
[J]. EUROPEAN PHYSICAL JOURNAL C, 2023, 83 (04):

← 1 2 3 4 5 →