Einstein-Aether Waves

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dc.creatorJacobson, T.
dc.creatorMattingly, D.
dc.date2004-02-03
dc.date2004-07-29
dc.date.accessioned2026-07-07T11:30:05Z
dc.date.available2026-07-07T11:30:05Z
dc.descriptionLocal Lorentz invariance violation can be realized by introducing extra tensor fields in the action that couple to matter. If the Lorentz violation is rotationally invariant in some frame, then it is characterized by an ``aether'', i.e. a unit timelike vector field. General covariance requires that the aether field be dynamical. In this paper we study the linearized theory of such an aether coupled to gravity and find the speeds and polarizations of all the wave modes in terms of the four constants appearing in the most general action at second order in derivatives. We find that in addition to the usual two transverse traceless metric modes, there are three coupled aether-metric modes.
dc.description5 pages; v2: Remarks added concerning gauge invariance of the waves and hyperbolicity of the equations. Essentially the version published in PRD
dc.identifierhttps://arxiv.org/abs/gr-qc/0402005
dc.identifierhttp://arxiv.org/abs/gr-qc/0402005
dc.identifierPhys.Rev.D70:024003,2004
dc.identifierdoi:10.1103/PhysRevD.70.024003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196912
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleEinstein-Aether Waves
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