Nearly scale-invariant power spectrum and quantum cosmological perturbations in the gravity's rainbow scenario

	Nearly scale-invariant power spectrum and quantum cosmological perturbations in the gravity's rainbow scenario
	Wang, S; Chang Z(常哲); Chang, Z
刊名	EUROPEAN PHYSICAL JOURNAL C
	2015
卷号	75 期号:6 页码:259
英文摘要	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.
学科主题	Physics
类目[WOS]	Physics, Particles & Fields
收录类别	SCI
WOS记录号	WOS:000355939500002
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/228459]
专题	高能物理研究所_理论物理室
推荐引用方式 GB/T 7714	Wang, S,Chang Z,Chang, Z. 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,常哲,&Chang, Z.(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.