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Cai, Rong-Gen; Pi, Shi2; Sasaki, Misao2,3,4
Universal infrared scaling of gravitational wave background spectra
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordPRIMORDIAL BLACK-HOLES RADIATION INFLATION PERTURBATIONS CONSTRAINTS
AbstractWe study the general infrared behavior of the power spectrum of a stochastic gravitational wave background produced by stress tensor in the form bilinear in certain dynamical degrees of freedom. We find Omega(GW) proportional to k(3) for a very wide class of the sources which satisfy a set of reasonable conditions. Namely, the k3 scaling is universally valid when the source term is bounded in both frequency and time, is effective in a radiation-dominated stage, and for k smaller than all the physical scales associated with the source, like the peak frequency, peak width, and time duration, etc. We also discuss possible violations of these conditions and their physical implications.
2020
ISSN1550-7998
Volume102Issue:8Pages:83528
Cooperation Status国际
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.102.083528
Indexed BySCIE
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27530
CollectionSCI期刊论文
Affiliation1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
3.Kavli Inst Phys & Math Universe WPI, Chiba 2778583, Japan
4.Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan
5.Natl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 10617, Taiwan
Recommended Citation
GB/T 7714
Cai, Rong-Gen,Pi, Shi,Sasaki, Misao. Universal infrared scaling of gravitational wave background spectra[J]. PHYSICAL REVIEW D,2020,102(8):83528.
APA Cai, Rong-Gen,Pi, Shi,&Sasaki, Misao.(2020).Universal infrared scaling of gravitational wave background spectra.PHYSICAL REVIEW D,102(8),83528.
MLA Cai, Rong-Gen,et al."Universal infrared scaling of gravitational wave background spectra".PHYSICAL REVIEW D 102.8(2020):83528.
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