Inflation without Slow Roll
广义相对论与量子宇宙学
2009-10-30 v2 天体物理学
摘要
We draw attention to the possibility that inflation (i.e. accelerated expansion) might continue after the end of slow roll, during a period of fast oscillations of the inflaton field \phi . This phenomenon takes place when a mild non-convexity inequality is satisfied by the potential V(\phi). The presence of such a period of \phi-oscillation-driven inflation can substantially modify reheating scenarios. In some models the effect of these fast oscillations might be imprinted on the primordial perturbation spectrum at cosmological scales.
引用
@article{arxiv.gr-qc/9712061,
title = {Inflation without Slow Roll},
author = {Thibault Damour and Viatcheslav F. Mukhanov},
journal= {arXiv preprint arXiv:gr-qc/9712061},
year = {2009}
}
备注
9 pages, Revtex, psfig, 1 figure, minor modifications, references added