ENERGY–MOMENTUM DISTRIBUTIONS OF FIVE-DIMENSIONAL HOMOGENEOUS-ANISOTROPIC UNIVERSES
| Autor: | Neriman Varlikli, Melis Ulu Dog̃ru, Dogukan Taser, Güliz Kiy, Derya Baykal, Halife Çağlar |
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| Rok vydání: | 2012 |
| Předmět: |
Physics
Spacetime General relativity Zero (complex analysis) Astronomy and Astrophysics Energy–momentum relation Type (model theory) Connection (mathematics) General Relativity and Quantum Cosmology symbols.namesake Classical mechanics Space and Planetary Science symbols Einstein Anisotropy Mathematical Physics Mathematical physics |
| Zdroj: | International Journal of Modern Physics D. 21:1250078 |
| ISSN: | 1793-6594 0218-2718 |
| DOI: | 10.1142/s0218271812500782 |
| Popis: | 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 Møller energy–momentum complexes have been used to obtain these related quantities of given the spacetimes in GR, while Einstein, Bergmann–Thomson, Landau–Lifshitz and Møller 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 Møller, 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. |
| Databáze: | OpenAIRE |
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