Elastic Inflation
Astrophysics
2009-11-10 v1 High Energy Physics - Theory
Abstract
Inflation of a universe filled by an elastic continuous medium is considered. Elastic inflation, while capable of describing current observations, is qualitatively different from standard inflationary models. The scalar and tensor modes keep evolving after crossing the horizon. Due to this superhorizon evolution, the amplitude of the tensor mode (inflationary gravitational wave) is not simply proportional to the energy density of the universe at the time of horizon crossing. The spectral index of tensor modes can be positive.
Keywords
Cite
@article{arxiv.astro-ph/0404548,
title = {Elastic Inflation},
author = {Andrei Gruzinov},
journal= {arXiv preprint arXiv:astro-ph/0404548},
year = {2009}
}
Comments
12 pages