FLRW-cosmology in generic gravity theories

被引:12
作者
Gurses, Metin [1 ]
Heydarzade, Yaghoub [1 ]
机构
[1] Bilkent Univ, Fac Sci, Dept Math, TR-06800 Ankara, Turkey
来源
EUROPEAN PHYSICAL JOURNAL C | 2020年 / 80卷 / 11期
关键词
TENSOR;
D O I
10.1140/epjc/s10052-020-08641-0
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We prove that for the Friedmann-Lemaitre-Robertson-Walker metric, the field equations of any generic gravity theory in arbitrary dimensions are of the perfect fluid type. The cases of general Lovelock and F(R,G) theories are given as examples.
引用
收藏
页数:7
相关论文
共 32 条
[21]  
Krasinski A., 1997, Inhomogeneous Cosmological Models, V1, DOI DOI 10.1017/CBO9780511721694
[22]   EINSTEIN TENSOR AND ITS GENERALIZATIONS [J].
LOVELOCK, D .
JOURNAL OF MATHEMATICAL PHYSICS, 1971, 12 (03) :498-&
[23]   On the Weyl and Ricci tensors of Generalized Robertson-Walker space-times [J].
Mantica, Carlo Alberto ;
Molinari, Luca Guido .
JOURNAL OF MATHEMATICAL PHYSICS, 2016, 57 (10)
[24]   A note on generalized Robertson-Walker space-times [J].
Mantica, Carlo Alberto ;
Suh, Young Jin ;
De, Uday Chand .
INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, 2016, 13 (06)
[25]   A condition for a perfect-fluid space-time to be a generalized Robertson-Walker space-time [J].
Mantica, Carlo Alberto ;
Molinari, Luca Guido ;
De, Uday Chand .
JOURNAL OF MATHEMATICAL PHYSICS, 2016, 57 (02)
[26]   Modified Gauss-Bonnet theory as gravitational alternative for dark energy [J].
Nojiri, S ;
Odintsov, SD .
PHYSICS LETTERS B, 2005, 631 (1-2) :1-6
[27]   Introduction to modified gravity and gravitational alternative for dark energy [J].
Nojiri, Shin'ichi ;
Odintsov, Sergei D. .
INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, 2007, 4 (01) :115-145
[28]   Cosmological constant - the weight of the vacuum [J].
Padmanabhan, T .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2003, 380 (5-6) :235-320
[29]  
Peebles PJE, 2015, PHYS COSMOLOGY, DOI [10.1515/9781400868773, DOI 10.1515/9781400868773]
[30]   f(R) theories of gravity [J].
Sotiriou, Thomas P. ;
Faraoni, Valerio .
REVIEWS OF MODERN PHYSICS, 2010, 82 (01) :451-497