The generation of gravitational waves during inflation due to the non-linear coupling of scalar and tensor modes is discussed. Two methods describing gravitational wave perturbations are used and compared: a covariant and local approach, as well as a metric-based analysis based on the Bardeen formalism. An application to slow-roll inflation is also described.
@article{arxiv.gr-qc/0612108,
title = {Gravitational waves generated by second order effects during inflation},
author = {Bob Osano and Cyril Pitrou and Peter Dunsby and Jean-Philippe Uzan and Chris Clarkson},
journal= {arXiv preprint arXiv:gr-qc/0612108},
year = {2010}
}
Comments
15 pages. v2 has minor changes to match published version