Gravity from spontaneous Lorentz violation

  title={Gravity from spontaneous Lorentz violation},
  author={Alan Kosteleck{\'y} and Robertus Potting},
  journal={Physical Review D},
We investigate a class of theories involving a symmetric two-tensor field in Minkowski spacetime with a potential triggering spontaneous violation of Lorentz symmetry. The resulting massless Nambu-Goldstone modes are shown to obey the linearized Einstein equations in a fixed gauge. Imposing self-consistent coupling to the energy-momentum tensor constrains the potential for the Lorentz violation. The nonlinear theory generated from the self-consistent bootstrap is an alternative theory of… 
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