ENERGY-MOMENTUM DISTRIBUTIONS OF FIVE-DIMENSIONAL HOMOGENEOUS-ANISOTROPIC UNIVERSES


Dogru M. , BAYKAL D., KIY G., TAŞER D. , ÇAĞLAR H. , VARLIKLI N.

INTERNATIONAL JOURNAL OF MODERN PHYSICS D, cilt.21, 2012 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 21 Konu: 10
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1142/s0218271812500782
  • Dergi Adı: INTERNATIONAL JOURNAL OF MODERN PHYSICS D

Özet

In this study, it has been investigated whether the energy and momentum can be localizable for five-dimensional homogeneous and anisotropic universes. In this connection, energy and momentum of five-dimensional Bianchi type-I, type-III and type-V spacetimes have been calculated in the framework of general relativity (GR) and teleparallel gravity (TG). Einstein, Bergmann-Thomson, Landau-Lifshitz, Papapetrou, Tolman and Moller energy-momentum complexes have been used to obtain these related quantities of given the spacetimes in GR, while Einstein, Bergmann-Thomson, Landau-Lifshitz and Moller prescriptions have been used to obtain these related quantities of the spacetimes in TG. It has been found that all of the energy and momentum distributions of five-dimensional Bianchi type-I spacetime are equal to zero in GR and TG. For five-dimensional Bianchi type-III and type-V spacetimes, Bergmann-Thomson, Einstein and Tolman energy and momentum components give the same results, however Moller, Landau-Lifshitz and Papapetrou energy-momentum distributions give different results in general relativity. Also, in TG, Bergmann-Thomson and Einstein energy and momentum components give the same results for the Bianchi type-III and type-V spacetimes, too. In this sense, it is seen that Einstein, Bergmann-Thomson and Landau-Lifshitz energy and momentum descriptions of these spacetimes have been given same results in both theories, GR and TG.