We investigate the stochastic dynamics of the inflaton for a wide class of potentials leading either to chaotic or to power-law inflation. At late times the system enters a scaling regime where macroscopic order sets in: the field distribution sharply peaks around the classical slow-rollover configuration and curvature perturbations originate with a non-Gaussian scale-invariant statistics.
Inflation in the Scaling Limit
MATARRESE, SABINO;LUCCHIN, FRANCESCO
1989
Abstract
We investigate the stochastic dynamics of the inflaton for a wide class of potentials leading either to chaotic or to power-law inflation. At late times the system enters a scaling regime where macroscopic order sets in: the field distribution sharply peaks around the classical slow-rollover configuration and curvature perturbations originate with a non-Gaussian scale-invariant statistics.File in questo prodotto:
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