Anisotropic cosmology with vector field in the Noether approach
Zhang, Sun1,2; Dong, Yi-Qiao3
2015-09-01
发表期刊ASTROPHYSICS AND SPACE SCIENCE
卷号359期号:1页码:16
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.
文章类型Article
关键词Cosmological Vector Field Anisotropy Bianchi Cosmology Noether Symmetry
WOS标题词Science & Technology ; Physical Sciences
学科领域天文和天体物理
DOI10.1007/s10509-015-2468-3
关键词[WOS]MODELS ; SYMMETRIES ; INFLATION
收录类别SCI
语种英语
资助项目PMO_LIB-IR
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000360840500016
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文献类型期刊论文
条目标识符http://libir.pmo.ac.cn/handle/332002/14924
专题宇宙伽马暴、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
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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.
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