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Spacetime Symmetry Breaking and Einstein-Maxwell Theory

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arxiv 1508.03888 v1 pith:JJCCTKBX submitted 2015-08-17 gr-qc hep-th

Robert Bluhm This is my paper · ORCID
classification gr-qchep-th
keywords breakingsymmetryeinstein-maxwellmodelmodesnambu-goldstonephotonsspacetime
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A vector model with a hybrid form of spacetime symmetry breaking consisting of explicit diffeomorphism breaking but spontaneous local Lorentz violation is presented. The combined effects of these symmetry breakings give rise to a theory obeying the Einstein-Maxwell equations in a preferred spatially homogeneous and isotropic frame, with photons emerging as massless Nambu-Goldstone modes. Interpretations and possible generalizations of this model are discussed, and comparisons are made to previous models describing photons as Nambu-Goldstone modes.

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Cited by 1 Pith paper

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  1. Vacuum Cherenkov radiation for nonminimal dimension-5 Lorentz violation

    hep-ph 2025-08 conditional novelty 6.0 of 10

    Isotropic dimension-5 Lorentz violation in fermions is constrained to below 1e-18 GeV^-1 (proton, m-type) and 3e-28 GeV^-1 (proton, a-type) by the absence of vacuum Cherenkov radiation in cosmic rays.

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