en
Scientific article
Open access
English

Constraints on backreaction in dust universes

ContributorsRasanen, Syksy
Published inClassical and quantum gravity, vol. 23, p. 1823-1835
Publication date2006
Abstract

We study backreaction in dust universes using exact equations which do not rely on perturbation theory, concentrating on theoretical and observational constraints. In particular, we discuss the recent suggestion (in hep-th/0503117) that superhorizon perturbations could explain present-day accelerated expansion as a useful example which can be ruled out. We note that a backreaction explanation of late-time acceleration will have to involve spatial curvature and subhorizon perturbations.

Citation (ISO format)
RASANEN, Syksy. Constraints on backreaction in dust universes. In: Classical and quantum gravity, 2006, vol. 23, p. 1823–1835. doi: 10.1088/0264-9381/23/6/001
Main files (1)
Article (Accepted version)
accessLevelPublic
Identifiers
ISSN of the journal0264-9381
529views
209downloads

Technical informations

Creation08/31/2009 9:53:00 AM
First validation08/31/2009 9:53:00 AM
Update time03/14/2023 3:11:08 PM
Status update03/14/2023 3:11:08 PM
Last indexation01/15/2024 6:44:27 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack