中国物理B ›› 2010, Vol. 19 ›› Issue (2): 20401-020401.doi: 10.1088/1674-1056/19/2/020401

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Brane world black holes in teleparallel theory equivalent to general relativity and their Killing vectors, energy, momentum and angular momentum

Gamal G.L. Nashed   

  1. Centre for Theoretical Physics, The British University in Egypt, El-Sherouk City, Misr -- Ismalia Desert Road, Postal No. 11837, P.O. Box 43, Egypt
  • 收稿日期:2009-01-22 修回日期:2009-06-14 出版日期:2010-02-15 发布日期:2010-02-15

Brane world black holes in teleparallel theory equivalent to general relativity and their Killing vectors, energy, momentum and angular momentum

Gamal G.L. Nashed   

  1. Centre for Theoretical Physics, The British University in Egypt, El-Sherouk City, Misr -- Ismalia Desert Road, Postal No. 11837, P.O. Box 43, Egypt
  • Received:2009-01-22 Revised:2009-06-14 Online:2010-02-15 Published:2010-02-15

摘要: The energy--momentum tensor, which is coordinate-independent, is used to calculate energy, momentum and angular momentum of two different tetrad fields. Although, the two tetrad fields reproduce the same space--time their energies are different. Therefore, a regularized expression of the gravitational energy--momentum tensor of the teleparallel equivalent of general relativity (TEGR), is used to make the energies of the two tetrad fields equal. The definition of the gravitational energy--momentum is used to investigate the energy within the external event horizon. The components of angular momentum associated with these space--times are calculated. In spite of using a static space--time, we get a non-zero component of angular momentum! Therefore, we derive the Killing vectors associated with these space--times using the definition of the Lie derivative of a second rank tensor in the framework of the TEGR to make the picture more clear.

Abstract: The energy--momentum tensor, which is coordinate-independent, is used to calculate energy, momentum and angular momentum of two different tetrad fields. Although, the two tetrad fields reproduce the same space--time their energies are different. Therefore, a regularized expression of the gravitational energy--momentum tensor of the teleparallel equivalent of general relativity (TEGR), is used to make the energies of the two tetrad fields equal. The definition of the gravitational energy--momentum is used to investigate the energy within the external event horizon. The components of angular momentum associated with these space--times are calculated. In spite of using a static space--time, we get a non-zero component of angular momentum! Therefore, we derive the Killing vectors associated with these space--times using the definition of the Lie derivative of a second rank tensor in the framework of the TEGR to make the picture more clear.

Key words: teleparallel equivalent of general relativity, brane world black holes, gravitational energy--momentum tensor, regularized expression of the gravitational energy--momentum

中图分类号:  (Physics of black holes)

  • 04.70.-s
04.50.-h (Higher-dimensional gravity and other theories of gravity) 11.25.Wx (String and brane phenomenology) 04.20.Gz (Spacetime topology, causal structure, spinor structure) 02.40.-k (Geometry, differential geometry, and topology)