Gravitational energy from a combination of a tetrad expression and Einstein's pseudotensor

Details Gravitational energy from a combination of a tetrad expression and Einstein's pseudotensor Gravitational energy from a combination of a tetrad expression and Einstein's pseudotensor

2008-01-24

arxiv.org/abs/0801.3705v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages

Scientific paper

10.1088/0264-9381/25/17/175012

The energy-momentum for a gravitating system can be considered by the tetard teleparalle gauge current in orthonormal frames. Whereas the Einstein pseudotensor used holonomic frames. Tetrad expression itself gives a better result for gravitational energy than Einstein's. Inspired by an idea of Deser, we found a gravitational energy expression which enjoys the positive energy property by combining the tetrad expression and the Einstein pseudotensor, i.e., the connection coefficient has a form appropriate to a suitable intermediate between orthonormal and holonomic frames.

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