Bohmer, Christian G. and Hehl, Friedrich W. (2018). Freud's superpotential in general relativity and in Einstein-Cartan theory. Phys. Rev. D, 97 (4). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2470-0029
Full text not available from this repository.Abstract
The identification of a suitable gravitational energy in theories of gravity has a long history, and it is well known that a unique answer cannot be given. In the first part of this paper we present a streamlined version of the derivation of Freud's superpotential in general relativity. It is found if we once integrate the gravitational field equation by parts. This allows us to extend these results directly to the Einstein-Cartan theory. Interestingly, Freud's original expression, first stated in 1939, remains valid even when considering gravitational theories in Riemann-Cartan or, more generally, in metric-affine spacetimes.
Item Type: | Journal Article | ||||||||||||
Creators: |
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URN: | urn:nbn:de:hbz:38-195681 | ||||||||||||
DOI: | 10.1103/PhysRevD.97.044028 | ||||||||||||
Journal or Publication Title: | Phys. Rev. D | ||||||||||||
Volume: | 97 | ||||||||||||
Number: | 4 | ||||||||||||
Date: | 2018 | ||||||||||||
Publisher: | AMER PHYSICAL SOC | ||||||||||||
Place of Publication: | COLLEGE PK | ||||||||||||
ISSN: | 2470-0029 | ||||||||||||
Language: | English | ||||||||||||
Faculty: | Unspecified | ||||||||||||
Divisions: | Unspecified | ||||||||||||
Subjects: | no entry | ||||||||||||
Uncontrolled Keywords: |
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Refereed: | Yes | ||||||||||||
URI: | http://kups.ub.uni-koeln.de/id/eprint/19568 |
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