Nonlinear gravitational waves and their polarization
General Relativity and Quantum Cosmology
2009-11-07 v2
Abstract
Vacuum gravitational fields invariant for a non Abelian Lie algebra generated by two Killing fields whose commutator is light-like are analyzed. It is shown that they represent nonlinear gravitational waves obeying to two nonlinear superposition laws. The energy and the polarization of this family of waves are explicitely evaluated.
Cite
@article{arxiv.gr-qc/0205047,
title = {Nonlinear gravitational waves and their polarization},
author = {F. Canfora and G. Vilasi and P. Vitale},
journal= {arXiv preprint arXiv:gr-qc/0205047},
year = {2009}
}
Comments
9 pages. LateX. Minor corrections