Photon decay in a CPT-violating extension of quantum electrodynamics
arXiv:hep-th/0212028 · doi:10.1016/S0550-3213(03)00143-3
Abstract
We consider the process of photon decay in quantum electrodynamics with a CPT-violating Chern-Simons-like term added to the action. For a simplified model with only the quadratic Maxwell and Chern-Simons-like terms and the quartic Euler-Heisenberg term, we obtain a nonvanishing probability for the decay of a particular photon state into three others.
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