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Xu, LX; Xu, LX (reprint author), Dalian Univ Technol, Sch Phys & Optoelect Technol, Inst Theoret Phys, Dalian 116024, Peoples R China.
Gravitational waves: A test for modified gravity
Source PublicationPHYSICAL REVIEW D
Language英语
AbstractIn a modified gravity theory, the propagation equation of gravitational waves will be presented in a nonstandard way. Therefore this tensor mode perturbation of time-space, as a complement to the scalar mode perturbation, provides a unique character distinguishing modified gravity from general relativity. To avoid the model-dependent issue, in this paper, we propose a parametrized modification to the propagation of gravitational waves. We show the effects on the angular power spectrum of cosmic microwave background radiation due to the parametrized modification and its degeneracy to the tensor mode power spectrum index n(t) and its running at. Last, we report the current status on the detection of modified gravity through the currently available cosmic observations. Our results show no significant deviation to general relativity.
2015
Volume91Issue:10Pages:103520
Subject AreaAstronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1103/PhysRevD.91.103520
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [11275035] ; National Natural Science Foundation of China [11275035] ; National Natural Science Foundation of China [11275035] ; National Natural Science Foundation of China [11275035] ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences (People's Republic of China) [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences (People's Republic of China) [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences (People's Republic of China) [Y4KF101CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences (People's Republic of China) [Y4KF101CJ1]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21001
CollectionSCI期刊论文
Corresponding AuthorXu, LX (reprint author), Dalian Univ Technol, Sch Phys & Optoelect Technol, Inst Theoret Phys, Dalian 116024, Peoples R China.
Recommended Citation
GB/T 7714
Xu, LX,Xu, LX . Gravitational waves: A test for modified gravity[J]. PHYSICAL REVIEW D,2015,91(10):103520.
APA Xu, LX,&Xu, LX .(2015).Gravitational waves: A test for modified gravity.PHYSICAL REVIEW D,91(10),103520.
MLA Xu, LX,et al."Gravitational waves: A test for modified gravity".PHYSICAL REVIEW D 91.10(2015):103520.
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