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ID: 213772.0, MPI für Gravitationsphysik / Geometric Analysis and Gravitation
Intermediate inflation and the slow-roll approximation
Authors:Rendall, Alan D.
Language:English
Date of Publication (YYYY-MM-DD):2005
Title of Journal:Classical and Quantum Gravity
Volume:22
Start Page:1655
End Page:1666
Review Status:not specified
Audience:Not Specified
Abstract / Description:It is shown that spatially homogeneous solutions of the Einstein equations coupled to a nonlinear scalar field and other matter exhibit accelerated expansion at late times for a wide variety of potentials V. These potentials are strictly positive but tend to zero at infinity. They satisfy restrictions on V'/V and V"/V' related to the slow-roll approximation. These results generalize Wald's theorem for spacetimes with positive cosmological constant to those with accelerated expansion driven by potentials belonging to a large class.
External Publication Status:published
Document Type:Article
Communicated by:Gerhard Huisken
Affiliations:MPI für Gravitationsphysik/Geometric Analysis and Gravitation
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