Cosmological Evolution of Scale-invariant Gravity Waves
Astrophysics
2009-10-22 v1 General Relativity and Quantum Cosmology
Abstract
The evolution of scale-invariant gravity waves from the early universe is analyzed using an equation of state which smoothly interpolates between the radiation dominated era and the present matter dominated era. We find that for large wavenumbers the standard scale-invarant wavefunction for the gravity wave severely {\it underestimates\/} the actual size of the gravity wave. Moreover, there is a definite shift in the {\it phase\/} of the gravity wave as it crosses the radiation-matter phase transition. The tensor-induced anisotropy of the cosmic microwave background and the present spectral energy density of the gravity wave is then calculated using these results.
Cite
@article{arxiv.astro-ph/9405043,
title = {Cosmological Evolution of Scale-invariant Gravity Waves},
author = {K. -W. Ng and A. D. Speliotopoulos},
journal= {arXiv preprint arXiv:astro-ph/9405043},
year = {2009}
}
Comments
14 pages plus 3 figures available upon request, RevTex, IP-ASTP-07-94