Causality and charged spin-2 fields in an electromagnetic background
High Energy Physics - Theory
2007-05-23 v2
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.
Keywords
Cite
@article{arxiv.hep-th/0302225,
title = {Causality and charged spin-2 fields in an electromagnetic background},
author = {M. Novello and S. E. Perez Bergliaffa and R. P. Neves},
journal= {arXiv preprint arXiv:hep-th/0302225},
year = {2007}
}
Comments
6 pages, RevTex4, minor changes following hep-th/0304050 and gr-qc/0304041, conclusions unchanged