The stability of modified gravity models

Preprint

16 November 2005

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.gr-qc/0511094

Abstract

Conditions for the existence and stability of de Sitter space in modified gravity are derived by considering inhomogeneous perturbations in a gauge-invariant formalism. The stability condition coincides with the corresponding condition for stability with respect to homogeneous perturbations, while this is not the case in scalar-tensor gravity. The stability criterion is applied to various modified gravity models of the early and the present universe.

Keywords

MODIFIED GRAVITY MODELS
CONDITION COINCIDES
MODELS CONDITIONS
VARIOUS MODIFIED
TENSOR GRAVITY
PERTURBATIONS
STABILITY

All Related Versions

Version 1, 2005-11-16, ArXiv
Published version: Physical Review D, 72 (12), 124005.

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