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Brane world black holes in teleparallel theory equivalent to general relativity and their Killing vectors, energy, momentum and angular momentum
Authors:Gamal G.L. Nashed
Affiliation:Centre for Theoretical Physics, The British University in Egypt, El-Sherouk City, Misr -- Ismalia Desert Road, Postal No. 11837, P.O. Box 43, Egypt
Abstract:The energy--momentum tensor, which is coordinate-independent, isused to calculate energy, momentum and angular momentum of twodifferent tetrad fields. Although, the two tetrad fields reproducethe same space--time their energies are different. Therefore, aregularized expression of the gravitational energy--momentum tensorof the teleparallel equivalent of general relativity (TEGR), isused to make the energies of the two tetrad fields equal. Thedefinition of the gravitational energy--momentum is used toinvestigate the energy within the external event horizon. Thecomponents of angular momentum associated with these space--timesare calculated. In spite of using a static space--time, we geta non-zero component of angular momentum! Therefore, we derivethe Killing vectors associated with these space--times using thedefinition of the Lie derivative of a second rank tensor in theframework of the TEGR to make the picture more clear.
Keywords:teleparallel equivalent of generalrelativity   brane world black holes   gravitational energy--momentumtensor   regularized expression of the gravitational energy--momentum
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