Inflation and primordial power spectra at anisotropic spacetime inspired by Planck's constraints on isotropy of CMB

	Inflation and primordial power spectra at anisotropic spacetime inspired by Planck's constraints on isotropy of CMB
	Chang Z(常哲); 王赛;Chang, Z; Wang, S
刊名	EUROPEAN PHYSICAL JOURNAL C
	2013
卷号	73 期号:8 页码:2516
英文摘要	Recently, the Planck 2013 results showed possible evidence for a dipolar power modulation of the CMB temperature fluctuations at low-l multipoles. This anomaly might imply certain deviations from statistical isotropy. To incorporate the Planck's data into the standard cosmological model, we propose an inflation model of the very early universe in an anisotropic spacetime. A generalized Friedmann-Robertson-Walker (FRW) metric is presented in the Randers-Finsler spacetime. We obtain the primordial power spectrum of the scalar perturbation with direction dependence, such as the dipolar modulation. This is consistent with the dipolar power modulation of the CMB anisotropy signaled by the Planck observation.
学科主题	Physics
收录类别	SCI
WOS记录号	WOS:000323901300008
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224462]
专题	高能物理研究所_理论物理室
推荐引用方式 GB/T 7714	Chang Z,王赛；Chang, Z,Wang, S. Inflation and primordial power spectra at anisotropic spacetime inspired by Planck's constraints on isotropy of CMB[J]. EUROPEAN PHYSICAL JOURNAL C,2013,73(8):2516.
APA	常哲,王赛；Chang, Z,&Wang, S.(2013).Inflation and primordial power spectra at anisotropic spacetime inspired by Planck's constraints on isotropy of CMB.EUROPEAN PHYSICAL JOURNAL C,73(8),2516.
MLA	常哲,et al."Inflation and primordial power spectra at anisotropic spacetime inspired by Planck's constraints on isotropy of CMB".EUROPEAN PHYSICAL JOURNAL C 73.8(2013):2516.