Long-wavelength iteration scheme and scalar-tensor gravity
General Relativity and Quantum Cosmology
2011-08-17 v1
Abstract
Inhomogeneous and anisotropic cosmologies are modeled withing the framework of scalar-tensor gravity theories. The inhomogeneities are calculated to third-order in the so-called long-wavelength iteration scheme. We write the solutions for general scalar coupling and discuss what happens to the third-order terms when the scalar-tensor solution approaches at first-order the general relativistic one. We work out in some detail the case of Brans-Dicke coupling and determine the conditions for which the anisotropy and inhomogeneity decay as time increases. The matter is taken to be that of perfect fluid with a barotropic equation of state.
Cite
@article{arxiv.gr-qc/9605042,
title = {Long-wavelength iteration scheme and scalar-tensor gravity},
author = {G. L. Comer and Nathalie Deruelle and David Langlois},
journal= {arXiv preprint arXiv:gr-qc/9605042},
year = {2011}
}
Comments
13 pages, requires REVTeX, submitted to Phys. Rev. D