Propagation of perturbations in non-linear spin-2 theories
General Relativity and Quantum Cosmology
2007-05-23 v1
Abstract
In this communication I analyze the problem of complete exceptionality of wave propagation in a class of spin 2 field theories. I show that, under the imposition of the good weak-field limit, only two Lagrangians are completely exceptional. These are the linear Fierz Lagrangian, and a Born-Infeld-like Lagrangian. As a byproduct, I reobtain the result that in a nonlinear theory, spin 2 particles follow an effective metric that depends on the nonlinearities of the Lagrangian.
Cite
@article{arxiv.gr-qc/0302031,
title = {Propagation of perturbations in non-linear spin-2 theories},
author = {Santiago E. Perez Bergliaffa},
journal= {arXiv preprint arXiv:gr-qc/0302031},
year = {2007}
}
Comments
8 pages, RevTex4, contribution to the Festschrift in honor of Professor Mario Novello's 60th birthday