Inflation dynamics and reheating
Abstract
The theory of inflation with single and multiple fields is reviewed paying particular attention to the dynamics of adiabatic and entropy/isocurvature perturbations which provide the primary means of testing inflationary models. The theory and phenomenology of reheating and preheating after inflation is reviewed providing a unified discussion of both the gravitational and nongravitational features of multifield inflation. In addition inflation in theories with extra dimensions and models such as the curvaton scenario and modulated reheating which provide alternative ways of generating largescale density perturbations are covered. Finally interesting observational implications are discussed that can result from adiabaticisocurvature correlations and nonGaussianity.
 Publication:

Reviews of Modern Physics
 Pub Date:
 April 2006
 DOI:
 10.1103/RevModPhys.78.537
 arXiv:
 arXiv:astroph/0507632
 Bibcode:
 2006RvMP...78..537B
 Keywords:

 98.80.Cq;
 Particletheory and fieldtheory models of the early Universe;
 Astrophysics;
 General Relativity and Quantum Cosmology;
 High Energy Physics  Phenomenology;
 High Energy Physics  Theory
 EPrint:
 51 pages, latex, 16 figures, version to appear in Reviews of Modern Physics