English

Classical bouncing Universes from vector fields

High Energy Physics - Theory 2015-05-30 v1

Abstract

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,RμνRμν,RμναβRμναβR,R^{\mu\nu}R_{\mu\nu},R^{\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+2n+2 dimensional space-time.

Keywords

Cite

@article{arxiv.1109.5901,
  title  = {Classical bouncing Universes from vector fields},
  author = {Michal Artymowski and Zygmunt Lalak},
  journal= {arXiv preprint arXiv:1109.5901},
  year   = {2015}
}

Comments

11 pages, 2 figures, plain LaTeX

R2 v1 2026-06-21T19:11:03.368Z