Inflation dynamics and reheating

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Bruce A. Bassett
Department of Physics, Kyoto University, Kyoto, Japan and Institute of Cosmology and Gravitation, University of Portsmouth, Mercantile House, Portsmouth PO1 2EG, United Kingdom

Shinji Tsujikawa
Department of Physics, Gunma National College of Technology, Gunma 371-8530, Japan

David Wands
Institute of Cosmology and Gravitation, University of Portsmouth, Mercantile House, Portsmouth PO1 2EG, United Kingdom

Published 24 May 2006

Thetheory of inflation with single and multiple fields is reviewedpaying particular attention to the dynamics of adiabatic and entropy/isocurvatureperturbations which provide the primary means of testing inflationary models.The theory and phenomenology of reheating and preheating after inflationis reviewed providing a unified discussion of both the gravitationaland nongravitational features of multifield inflation. In addition inflation intheories with extra dimensions and models such as the curvatonscenario and modulated reheating which provide alternative ways of generatinglarge-scale density perturbations are covered. Finally interesting observational implications arediscussed that can result from adiabatic-isocurvature correlations and non-Gaussianity.

URL:	http://link.aps.org/doi/10.1103/RevModPhys.78.537
DOI:	10.1103/RevModPhys.78.537
PACS:	98.80.Cq 98.80.Cq Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.) YEAR: 2006
KEYWORDS:	cosmology, gravitation, entropy, reviews, perturbation theory

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