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Nearly scale-invariant power spectrum and quantum cosmological perturbations in the gravity's rainbow scenario
Wang, S; Chang, Z; Wang, S (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100049, Peoples R China.
2015
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号75期号:6页码:259
文章类型Article
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.
学科领域Physics
资助者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 ; NSFC [11322545, 11335012] ; NSFC [11322545, 11335012] ; 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 ; NSFC [11322545, 11335012] ; NSFC [11322545, 11335012]
DOIhttp://dx.doi.org/10.1140/epjc/s10052-015-3457-y
关键词[WOS]INFLATIONARY UNIVERSE ; FLATNESS PROBLEMS ; HORIZON
收录类别SCI
语种英语
资助者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 ; NSFC [11322545, 11335012] ; NSFC [11322545, 11335012] ; 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 ; NSFC [11322545, 11335012] ; NSFC [11322545, 11335012]
WOS类目Physics, Particles & Fields
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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2015年知识产出
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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