de Sitter attractors in generalized gravity

2004/07/06 by Valerio Faraoni · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #gr-qc

paper · pdf · doi:10.1103/physrevd.70.044037

published as Phys.Rev. D70 (2004) 044037 · 39 pages, LaTeX, to appear in Physical Review D

arxiv created 2004/07/06 · openalex publication_date 2004/08/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We obtain conditions for the existence and stability of de Sitter attractors in the phase space of homogeneous and isotropic cosmology in generalized theories of gravity (including nonlinear and scalar-tensor theories). These conditions are valid for any form of the coupling functions of the theory. Stability with respect to inhomogeneous perturbations is analyzed using a covariant and gauge-invariant formalism. The relevance for inflationary scenarios of the early universe and for quintessence models of the present era is discussed.

Citations

• First Estimations of Cosmological Parameters From BOOMERANG
• Measurements of Ω and Λ from 42 High‐Redshift Supernovae
• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant

Cited by

• Reconstructing the universe history, from inflation to acceleration, with phantom and canonical scalar fields
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