Extra dimensions and atomic transition frequencies
文献类型：期刊论文
| 作者 | Li Zhi-Gang ; Ni Wei-Tou; Paton, Antonio Pulido
|
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2008 |
| 卷号 | 17期号:1页码:70-75 |
| ISSN号 | 1674-1056 |
| 关键词 | large extra dimensions Lamb shift atomic spectroscopy |
| 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 |
| 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. |
入库方式： OAI收割
来源：紫金山天文台
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