Bounds on an energy-dependent and observer-independent speed of light from violations of locality

Abstract

We show that models with deformations of special relativity that have an energy-dependent speed of light have non-local effects. The requirement that the arising non-locality is not in conflict with known particle physics allows us to derive strong bounds on deformations of special relativity and rule out a modification to first order in energy over the Planck mass.

arXiv commentshort version of arXiv:0912.0090

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