Extra dimensions and atomic transition frequencies

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 近地天体探测和太阳系天体研究团组

	Extra dimensions and atomic transition frequencies
	Li Zhi-Gang; Ni Wei-Tou; Paton, Antonio Pulido
刊名	CHINESE PHYSICS B
	2008
卷号	17 期号:1 页码:70-75
关键词	large extra dimensions Lamb shift atomic spectroscopy
ISSN号	1674-1056
英文摘要	New unification theories predict large extra dimensions (LEDs). If that is the case, gravity would be stronger at short ranges than what Newtonian gravity predicts. LEDs could also have effects at atomic level. In this paper we propose a new method to constrain the size of 'gravity-only' LEDs by analysing how these LEDs modify the energy of the atomic transitions 1s-2s and 2s-2p (Lamb shift), in the particular case of the hydrogen and muonium atoms. We estimate these effects by using Bethe's non-relativistic treatment of Lamb shift. In the particular case of three LEDs, which may be a candidate to explain the interaction mechanism of dark matter particles, we have found that current knowledge in atomic spectroscopy could constrain their sizes to less than 10 mu m. Although our contributions do not reach the sensitivity given by SN1987a, they are still slightly better than recent constraints given by Inverse Square Law tests of the Eot-Wash group at Washington University, which gave R(3) < 36.6 mu m.
学科主题	Physics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	1S-2S TRANSITION ; LAMB SHIFT ; MUONIUM ; GRAVITY ; SCALES
收录类别	SCI
语种	英语
WOS记录号	WOS:000253960400013
公开日期	2011-12-29
内容类型	期刊论文
源URL	[http://159.226.72.40/handle/332002/1865]
专题	紫金山天文台_近地天体探测和太阳系天体研究团组
作者单位	Chinese Acad Sci, Ctr Gravitat & Cosmol, Purple Mt Observ, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Li Zhi-Gang,Ni Wei-Tou,Paton, Antonio Pulido. Extra dimensions and atomic transition frequencies[J]. CHINESE PHYSICS B,2008,17(1):70-75.
APA	Li Zhi-Gang,Ni Wei-Tou,&Paton, Antonio Pulido.(2008).Extra dimensions and atomic transition frequencies.CHINESE PHYSICS B,17(1),70-75.
MLA	Li Zhi-Gang,et al."Extra dimensions and atomic transition frequencies".CHINESE PHYSICS B 17.1(2008):70-75.