Gravitational Waves from Collapsing Vacuum Domains
Abstract
The breaking of an approximate discrete symmetry, the final stages of a first order phase transition, or a post-inflationary biased probability distribution for scalar fields are possible cosmological scenarios characterized by the presence of unstable domain wall networks. Combining analytical and numerical techniques, we show that the non-spherical collapse of these domains can be a powerful source of gravitational waves. We compute their contribution to the stochastic background of gravitational radiation and explore their observability by present and future gravitational wave detectors.
Cite
@article{arxiv.astro-ph/9807260,
title = {Gravitational Waves from Collapsing Vacuum Domains},
author = {Marcelo Gleiser and Ronald Roberts},
journal= {arXiv preprint arXiv:astro-ph/9807260},
year = {2009}
}
Comments
Revised version to appear in Physical Review Letters. Changes have been made which improve the presentation of the results. Figure 3 was modified, but conclusions remain the same