Classical bouncing Universes from vector fields

被引:2
|
作者
Artymowski, Michal [1 ]
Lalak, Zygmunt [1 ]
机构
[1] Univ Warsaw, Inst Theoret Phys, Fac Phys, PL-00681 Warsaw, Poland
关键词
D O I
10.1016/j.physletb.2011.12.020
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
For the anisotropic Universe filled with massless vector field in the General Relativity frame we obtain bouncing solution for one of scale factors. We obtain the Universe with finite maximal energy density, finite value of R, (RR mu nu)-R-mu nu, (RR mu nu alpha beta)-R-mu nu alpha beta and non-zero value of a scale factor for directions transverse to a vector field. Such a bounce can be also obtained for a massive vector field with kinetic initial conditions, which gives isotropic low energy limit. We discuss the existence of a bounce for a massless vector field with additional matter fields, such as cosmological constant or dust. We also discuss bouncing solution for massless vector field domination in n + 2-dimensional space-time. (C) 2011 Elsevier B.V. All rights reserved.
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页码:203 / 208
页数:6
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