Spatial and temporal variations of the fine-structure constant in the Finslerian universe
文献类型：期刊论文
| 作者 | Li, X; Lin, HN; Li, X (reprint author), Chongqing Univ, Dept Phys, Chongqing 401331, Peoples R China.; Li, X (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China. |
| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2017 |
| 卷号 | 41期号:6页码:65102 |
| 关键词 | Finsler Spacetime Fine-structure Constant Anisotropy Of The Universe |
| DOI | http://dx.doi.org/10.1088/1674-1137/41/6/065102 |
| 英文摘要 | Recent observations show that the electromagnetic fine-structure constant, alpha(e), may vary with space and time. In the framework of Finsler spacetime, we propose here an anisotropic cosmological model, in which both spatial and temporal variations of alpha(e) are allowed. Our model naturally leads to the dipole structure of alpha(e), and predicts that the dipole amplitude increases with time. We fit our model to the most up-to-date measurements of alpha(e) from the quasar absorption lines. It is found that the dipole direction points towards (l, b) = (330.2 degrees +/- 7.3 degrees, -13.0 degrees +/- 5.6 degrees) in galactic coordinates, and the anisotropic parameter is b(0) = (0.47 +/- 0.09) x 10(-5), which corresponds to a dipole amplitude (7.2 +/- 1.4) x 10(-8) at redshift z = 0.015. This is consistent with the upper limit of the variation of alpha(e) measured in the Milky Way. We also fit our model to Union2.1 type Ia supernovae, and find that the preferred direction of Union2.1 is consistent with the dipole direction of alpha(e). |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/22044]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Li, X (reprint author), Chongqing Univ, Dept Phys, Chongqing 401331, Peoples R China.; Li, X (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Li, X,Lin, HN,Li, X ,et al. Spatial and temporal variations of the fine-structure constant in the Finslerian universe[J]. CHINESE PHYSICS C,2017,41(6):65102. |
| APA | Li, X,Lin, HN,Li, X ,&Li, X .(2017).Spatial and temporal variations of the fine-structure constant in the Finslerian universe.CHINESE PHYSICS C,41(6),65102. |
| MLA | Li, X,et al."Spatial and temporal variations of the fine-structure constant in the Finslerian universe".CHINESE PHYSICS C 41.6(2017):65102. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。