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arXiv · 1508.03888

Spacetime Symmetry Breaking and Einstein-Maxwell Theory

Robert Bluhm
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Abstract

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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Robert Bluhm. 2015-08-17. Spacetime Symmetry Breaking and Einstein-Maxwell Theory. https://doi.org/10.1103/physrevd.92.085015

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