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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.
Spatial and temporal variations of the fine-structure constant in the Finslerian universe
Source PublicationCHINESE PHYSICS C
Language英语
KeywordFinsler Spacetime Fine-structure Constant Anisotropy Of The Universe
AbstractRecent 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).
2017
Volume41Issue:6Pages:65102
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1088/1674-1137/41/6/065102
Funding OrganizationFundamental Research Funds for Central Universities [106112016CDJCR301206] ; Fundamental Research Funds for Central Universities [106112016CDJCR301206] ; Fundamental Research Funds for Central Universities [106112016CDJCR301206] ; Fundamental Research Funds for Central Universities [106112016CDJCR301206] ; National Natural Science Fund of China [11305181, 11547035, 11603005] ; National Natural Science Fund of China [11305181, 11547035, 11603005] ; National Natural Science Fund of China [11305181, 11547035, 11603005] ; National Natural Science Fund of China [11305181, 11547035, 11603005] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22044
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLi, 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.
Recommended Citation
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.
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