ITP OpenIR  > SCI期刊论文
Meng, XH; Wang, P; Meng, XH , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
Modified Friedmann equations in R-1-modified gravity
Source PublicationCLASSICAL AND QUANTUM GRAVITY
KeywordCosmological Constant Accelerating Universe Newtonian Dynamics Quintessence Supernovae Brane
AbstractRecently, corrections to the Einstein-Hilbert action that become important at small curvature have been proposed. We discuss the first-order and second-order approximations to the field equations derived by the Palatini variational principle. We work out the first- and second-order modified Friedmann equations and present the upper redshift bounds when these approximations are valid. We show that the second-order effects can be neglected in the cosmological predictions involving only the Hubble parameter, e.g. the various cosmological distances, but the second-order effects cannot be neglected in the predictions involving the derivatives of the Hubble parameter. Furthermore, the modified Friedmann equations fit the SNe Ia data at an acceptable level.
2003
ISSN0264-9381
Volume20Issue:22Pages:4949-4961
Subject AreaPhysics
Indexed BySCI
Citation statistics
Cited Times:123[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/14181
CollectionSCI期刊论文
Corresponding AuthorMeng, XH , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
Recommended Citation
GB/T 7714
Meng, XH,Wang, P,Meng, XH , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.. Modified Friedmann equations in R-1-modified gravity[J]. CLASSICAL AND QUANTUM GRAVITY,2003,20(22):4949-4961.
APA Meng, XH,Wang, P,&Meng, XH , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China..(2003).Modified Friedmann equations in R-1-modified gravity.CLASSICAL AND QUANTUM GRAVITY,20(22),4949-4961.
MLA Meng, XH,et al."Modified Friedmann equations in R-1-modified gravity".CLASSICAL AND QUANTUM GRAVITY 20.22(2003):4949-4961.
Files in This Item:
File Name/Size DocType Version Access License
Modified Friedmann e(228KB) 开放获取LicenseApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Meng, XH]'s Articles
[Wang, P]'s Articles
[Meng, XH , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Meng, XH]'s Articles
[Wang, P]'s Articles
[Meng, XH , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Meng, XH]'s Articles
[Wang, P]'s Articles
[Meng, XH , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.