Regularized expression for the gravitational energy-momentum in teleparallel gravity and the principle of equivalence

The expression of the gravitational energy-momentum defined in the context of the teleparallel equivalent of general relativity is extended to an arbitrary set of real-valued tetrad fields, by adding a suitable reference space subtraction term. The characterization of tetrad fields as reference fram...

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Bibliographic Details
Published in:General relativity and gravitation 2007-03, Vol.39 (3), p.227-240
Main Authors: Maluf, J. W., Veiga, M. V. O., da Rocha-Neto, J. F.
Format: Article
Language:English
Subjects:
Context
Equivalence
Gravity
Momentum
Physics
Relativity
Subtraction
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Summary:The expression of the gravitational energy-momentum defined in the context of the teleparallel equivalent of general relativity is extended to an arbitrary set of real-valued tetrad fields, by adding a suitable reference space subtraction term. The characterization of tetrad fields as reference frames is addressed in the context of the Kerr space–time. It is also pointed out that Einstein’s version of the principle of equivalence does not preclude the existence of a definition for the gravitational energy-momentum density.
ISSN:0001-7701
1572-9532
DOI:10.1007/s10714-006-0339-5