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Phys. Rev. D 76, 124030 (2007) [13 pages]

Invariant conserved currents in gravity theories: Diffeomorphisms and local gauge symmetries

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Yuri N. Obukhov*,†
Institute for Theoretical Physics, University of Cologne, 50923 Köln, Germany

Guillermo F. Rubilar
Departamento de Física, Universidad de Concepción, Casilla 160-C, Concepción, Chile

Received 31 August 2007; published 27 December 2007

Previously, we developed a general method to construct invariant conserved currents and charges in gravitational theories with Lagrangians that are invariant under spacetime diffeomorphisms and local Lorentz transformations. This approach is now generalized to the case when the local Lorentz group is replaced by an arbitrary local gauge group. The particular examples include the Maxwell and Yang-Mills fields coupled to gravity with Abelian and non-Abelian local internal symmetries and the metric-affine gravity in which the local Lorentz spacetime group is extended to the local general linear group.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.76.124030
DOI:
10.1103/PhysRevD.76.124030
PACS:
04.20.Cv, 04.20.Fy, 04.50.+h

*yo@thp.uni-koeln.de

Also at Department of Theoretical Physics, Moscow State University, 117234 Moscow, Russia.

grubilar@udec.cl