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Wang, S; Chang, Z; Wang, S (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100049, Peoples R China.
Nearly scale-invariant power spectrum and quantum cosmological perturbations in the gravity's rainbow scenario
发表期刊EUROPEAN PHYSICAL JOURNAL C
语种英语
摘要We propose the gravity's rainbow scenario as a possible alternative of the inflation paradigm to account for the flatness and horizon problems. We focus on studying the cosmological scalar perturbations which are seeded by the quantum fluctuations in the very early universe. The scalar power spectrum is expected to be nearly scale-invariant. We estimate the rainbow index lambda and energy scale M in the gravity's rainbow scenario by analyzing the Planck temperature and WMAP polarization datasets. The constraints on them are given by lambda = 2.933 +/- 0.012 and ln(10(5)M/M-p) = -0.401(-0.451)(+0.457) at the 68% confidence level.
2015
卷号75期号:6页码:259
学科领域Physics
DOIhttp://dx.doi.org/10.1140/epjc/s10052-015-3457-y
收录类别SCI
项目资助者Natural Science Fund of China (NSFC) [11375203] ; Natural Science Fund of China (NSFC) [11375203] ; Natural Science Fund of China (NSFC) [11375203] ; Natural Science Fund of China (NSFC) [11375203] ; Knowledge Innovation Program of Chinese Academy of Sciences ; Knowledge Innovation Program of Chinese Academy of Sciences ; Knowledge Innovation Program of Chinese Academy of Sciences ; Knowledge Innovation Program of Chinese Academy of Sciences ; NSFC [11322545, 11335012] ; NSFC [11322545, 11335012] ; NSFC [11322545, 11335012] ; NSFC [11322545, 11335012]
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/20970
专题理论物理所科研产出_SCI论文
通讯作者Wang, S (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100049, Peoples R China.
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GB/T 7714
Wang, S,Chang, Z,Wang, S . Nearly scale-invariant power spectrum and quantum cosmological perturbations in the gravity's rainbow scenario[J]. EUROPEAN PHYSICAL JOURNAL C,2015,75(6):259.
APA Wang, S,Chang, Z,&Wang, S .(2015).Nearly scale-invariant power spectrum and quantum cosmological perturbations in the gravity's rainbow scenario.EUROPEAN PHYSICAL JOURNAL C,75(6),259.
MLA Wang, S,et al."Nearly scale-invariant power spectrum and quantum cosmological perturbations in the gravity's rainbow scenario".EUROPEAN PHYSICAL JOURNAL C 75.6(2015):259.
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