SPACETIME VARIATION OF alpha AND THE CMB POWER SPECTRA AFTER THE RECOMBINATION

	SPACETIME VARIATION OF alpha AND THE CMB POWER SPECTRA AFTER THE RECOMBINATION
	Wang, Xiulian 1; Li, Mingzhe
刊名	MODERN PHYSICS LETTERS A
	2011-01-10
卷号	26 期号:1 页码:43-52
关键词	Cosmology cosmic microwave background varying fine structure constant
ISSN号	0217-7323
英文摘要	The possible variation of the fine structure constant may be due to the non-minimal coupling of the electromagnetic field to a light scalar field which can be the candidate of dark energy. Its dynamical nature renders the fine structure constant varies with time as well as space. In this paper we point out that the spatial fluctuation of the fine structure will modify the power spectra of the temperature and the polarization of the cosmic microwave background. We show explicitly that the fluctuations of the coupled scalar field generate new temperature anisotropies at the linear order and induce a B mode to the polarization at higher order in general.
学科主题	Physics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields ; Physics, Mathematical
研究领域[WOS]	Physics
关键词[WOS]	FINE-STRUCTURE CONSTANT ; VARYING-ALPHA ; POLARIZATION ; QUINTESSENCE ; UNIVERSE
收录类别	SCI
语种	英语
WOS记录号	WOS:000285973100004
公开日期	2012-08-07
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/4573]
专题	紫金山天文台_期刊（老文献）
作者单位	1.Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China 2.Nanjing Univ, Joint Ctr Particle Nucl Phys & Cosmol, Purple Mt Observ, Nanjing 210093, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiulian,Li, Mingzhe. SPACETIME VARIATION OF alpha AND THE CMB POWER SPECTRA AFTER THE RECOMBINATION[J]. MODERN PHYSICS LETTERS A,2011,26(1):43-52.
APA	Wang, Xiulian,&Li, Mingzhe.(2011).SPACETIME VARIATION OF alpha AND THE CMB POWER SPECTRA AFTER THE RECOMBINATION.MODERN PHYSICS LETTERS A,26(1),43-52.
MLA	Wang, Xiulian,et al."SPACETIME VARIATION OF alpha AND THE CMB POWER SPECTRA AFTER THE RECOMBINATION".MODERN PHYSICS LETTERS A 26.1(2011):43-52.