Self-similarity in a Kantowski-Sachs universe with a string cloud

Authors

  • Héctor Martínez.
  • Carlos Peralta.

Keywords:

Self-similar, strings, inflation, universe

Abstract

We study a cosmological model with very simple solutions characterized by string clouds. Assuming self-similar symmetry for a Kantowski-Sachs spacetime we study the gravitational effects of the cosmic strings. It is also assumed that the primitive universe enters in a false vacuum-dominated era, accelerating the expansion in a time period of the order of $10^{-35}$ {\rm sec} (a phase transition), satisfying all the energy conditions. Finally, we examine the possibility that in the last stages of this evolution, the geometry of the universe could be flat.

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Published

2005-01-01

How to Cite

[1]
Héctor Martínez. and Carlos Peralta., “Self-similarity in a Kantowski-Sachs universe with a string cloud”, Rev. Mex. Fís., vol. 51, no. 1, pp. 22–0, Jan. 2005.

Issue

Vol. 51 No. 1 (2005): Revista Mexicana de Física.

Section

Articles

License

Authors retain copyright and grant the Revista Mexicana de Física right of first publication with the work simultaneously licensed under a CC BY-NC-ND 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.