Anisotropic cosmology with vector field in the Noether approach
文献类型：期刊论文
| 作者 | Zhang, Sun1,2 ; Dong, Yi-Qiao3
|
| 刊名 | ASTROPHYSICS AND SPACE SCIENCE
 |
| 出版日期 | 2015-09-01 |
| 卷号 | 359期号:1页码:16 |
| 关键词 | Cosmological vector field Anisotropy Bianchi cosmology Noether symmetry |
| 英文摘要 | In this Letter, based on Bianchi-I type cosmological model, we have studied the evolution of universe in terms of a vector field coupled to the scalar field. The symmetries of the system are calculated in the Noether approach, the scalar potential and the gauge kinetic function are also obtained following these symmetries. The dynamical equations are integrated numerically and the behaviors of cosmological evolution are presented certainly. Furthermore, the early-time and late-time scenarios are also reached asymptotically, that is, the universe is during the period of decelerating expansion in the early time while during the period of accelerating expansion in the late time. Moreover, we have also studied the expansion isotropization of the universe during evolution. There is no Kasner solution in the present case, while the universe would approach an isotropic Robertson-Walker one, concretely, a de Sitter type one in the late time. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | 天文和天体物理 |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | MODELS ; SYMMETRIES ; INFLATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000360840500016 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/14924]  |
| 专题 | 紫金山天文台_宇宙伽马暴、中子星及相关物理研究团组 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 2.PMO NJU, Joint Ctr Particle Nucl Phys & Cosmol J CPNPC, Nanjing 210008, Jiangsu, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Sun,Dong, Yi-Qiao. Anisotropic cosmology with vector field in the Noether approach[J]. ASTROPHYSICS AND SPACE SCIENCE,2015,359(1):16. |
| APA | Zhang, Sun,&Dong, Yi-Qiao.(2015).Anisotropic cosmology with vector field in the Noether approach.ASTROPHYSICS AND SPACE SCIENCE,359(1),16. |
| MLA | Zhang, Sun,et al."Anisotropic cosmology with vector field in the Noether approach".ASTROPHYSICS AND SPACE SCIENCE 359.1(2015):16. |
入库方式： OAI收割
来源：紫金山天文台
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