Primordial perturbations from inflation
Abstract
Description
I review the standard analysis of adiabatic scalar and tensor perturbations produced by slow-roll inflation driven by a single scalar field, before going on to discuss recent work on the role of non-adiabatic modes during and after inflation. Isocurvature perturbations correlated with adiabatic modes may be produced during multi-field inflation and would give valuable information about the physics of the early universe. A significant contribution from correlated isocurvature perturbations is not ruled out by present data, but should be either detected or ruled out by future observations.
10 pages, no figures, invited talk at 5th RESCEU Symposium, New Trends in Theoretical and Observational Cosmology, Tokyo, November 2001
10 pages, no figures, invited talk at 5th RESCEU Symposium, New Trends in Theoretical and Observational Cosmology, Tokyo, November 2001