Einstein-aether theory, violation of Lorentz invariance, and metric-affine gravity
Journal Article
·
· Physical Review. D, Particles Fields
- Institut fuer Theoretische Physik, Universitaet zu Koeln, 50923 Koeln (Germany)
- Fachbereich Medien, Fachhochschule Duesseldorf, University of Applied Sciences, Josef-Gockeln-Str. 9, 40474 Duesseldorf (Germany)
- Institut fuer Theoretische Physik, Universitaet zu Koeln, 50923 Cologne (Germany)
We show that the Einstein-aether theory of Jacobson and Mattingly (J and M) can be understood in the framework of the metric-affine (gauge theory of) gravity (MAG). We achieve this by relating the aether vector field of J and M to certain post-Riemannian nonmetricity pieces contained in an independent linear connection of spacetime. Then, for the aether, a corresponding geometrical curvature-square Lagrangian with a massive piece can be formulated straightforwardly. We find an exact spherically symmetric solution of our model.
- OSTI ID:
- 20711166
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 72, Issue 2; Other Information: DOI: 10.1103/PhysRevD.72.025012; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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