arXiv · hep-th/0302225
Causality and charged spin-2 fields in an electromagnetic background
Abstract
We show that, contrary to common belief, the propagation of a spin-2 field in an electromagnetic background is {\em causal}. The proof will be given in the Fierz formalism which, as we shall see, is free of the ambiguity present in the more usual Einstein representation. We shall also review the proof in this latter representation.
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M. Novello, S. E. Perez Bergliaffa, R. P. Neves. 2003-04-14. Causality and charged spin-2 fields in an electromagnetic background. https://arxiv.org/abs/hep-th/0302225
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