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Finslerian Perturbation for the ACDM Model
Li X(李昕); Wang S(王赛); 常哲;Xin, L; Wang, S; Chang, Z
2014
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
卷号61期号:6页码:781-788
摘要We present Finslerian perturbation for the ACDM model, which breaks the isotropic symmetry of the universe. The analysis on the Killing vectors shows that the Randers-Finsler spacetime breaks the isotropic symmetry even if the scalar perturbations of the FRW metric vanish. In Randers-Finsler spacetime, the modified geodesic equation deduces a modified Boltzmann equation. We propose a perturbational version of the gravitational field equation in Randers-Finsler spacetime, where we have omitted the curvature tensor that does not belong to the base space of the tangent bundle. The gravitational field equations for the gravitational wave are also presented. The primordial power spectrum of the gravitational wave is investigated. We show that the primordial power spectrum for super-horizon perturbations is unchanged. For sub-horizon perturbations, however, the power spectrum is modified.
关键词ACDM perturbations Finsler spacetime
学科领域Physics
收录类别SCI
WOS记录号WOS:000338561700019
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224977
专题理论物理室
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Li X,Wang S,常哲;Xin, L,et al. Finslerian Perturbation for the ACDM Model[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2014,61(6):781-788.
APA 李昕,王赛,常哲;Xin, L,Wang, S,&Chang, Z.(2014).Finslerian Perturbation for the ACDM Model.COMMUNICATIONS IN THEORETICAL PHYSICS,61(6),781-788.
MLA 李昕,et al."Finslerian Perturbation for the ACDM Model".COMMUNICATIONS IN THEORETICAL PHYSICS 61.6(2014):781-788.
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