On the effective action of the vacuum photon splitting in Lorentz-violating QED

Details On the effective action of the vacuum photon splitting in Lorentz-violating QED On the effective action of the vacuum photon splitting in Lorentz-violating QED

2011-01-27

arxiv.org/abs/1101.5390v2

Physics

High Energy Physics

High Energy Physics - Theory

4 pages, version to appear in EPL

Scientific paper

We consider one-loop radiative corrections from Lorentz- and CPT- violating extended QED to address the specific problem of finding explicitly an effective action describing amplitude of photon triple splitting. We show that it is not possible to find a nonzero photon triple splitting effective action, at least by using the derivative expansion method (at zero external momenta), up to leading order in the Lorentz- and CPT- violating parameter.

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