International Journal of Theoretical Physics

, Volume 53, Issue 11, pp 3901–3909 | Cite as

Torsion and Particle Horizons

  • M. I. Wanas
  • H. A. Hassan


Inthe present work we show that the existence of non-vanishing torsion field may solve, at least, one of the problems FRW-cosmology, the particle horizons problem. The field equations of general relativity (GR) are written in a space having non-vanishing torsion, the absolute parallelism (AP) space. An AP-Structure, satisfying the cosmological principle, is used to construct a world model. Energy density and pressure, purely induced by torsion, are defined from the building blocks of the AP-geometry using GR. When these quantities are used in the FRW-dynamical equations, we get a world model free from particle horizons.


Cosmology Geeral relativity Inflation 


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© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Astronomy Department, Faculty of ScienceCairo UniversityGizaEgypt
  2. 2.Egyptian Relativity Group (ERG)CairoEgypt

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