Constraining Lorentz violation with cosmology

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dc.creatorZuntz, J. A.
dc.creatorFerreira, P. G.
dc.creatorZlosnik, T. G.
dc.date2008-08-13
dc.date.accessioned2026-07-07T12:32:19Z
dc.date.available2026-07-07T12:32:19Z
dc.descriptionThe Einstein-Aether theory provides a simple, dynamical mechanism for breaking Lorentz invariance. It does so within a generally covariant context and may emerge from quantum effects in more fundamental theories. The theory leads to a preferred frame and can have distinct experimental signatures. In this letter, we perform a comprehensive study of the cosmological effects of the Einstein-Aether theory and use observational data to constrain it. Allied to previously determined consistency and experimental constraints, we find that an Einstein-Aether universe can fit experimental data over a wide range of its parameter space, but requires a specific rescaling of the other cosmological densities.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0808.1824
dc.identifierhttp://arxiv.org/abs/0808.1824
dc.identifierPhys.Rev.Lett.101:261102,2008
dc.identifierdoi:10.1103/PhysRevLett.101.261102
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/216746
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleConstraining Lorentz violation with cosmology
dc.typetext

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