Scalar field cosmological models with finite scale factor singularities

2008/01/15 by F. Cannata, Francesco Cannata, Alexander Yu. Kamenshchik +1
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Relativity and Gravitational Theory #astro-ph #gr-qc #hep-th

paper · pdf · doi:10.1016/j.physletb.2008.06.077

published as Phys.Lett.B670:241-245,2009 · 6 pages, 3 figures

arxiv created 2008/01/15 · openalex publication_date 2008/11/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31

Abstract

We construct a scalar field based cosmological model, possessing a cosmological singularity characterized by a finite value of the cosmological radius and an infinite scalar curvature. Using the methods of the qualitative theory of differential equations, we give a complete description of the cosmological evolutions in the model under consideration. There are four classes of evolutions, two of which have finite lifetimes, while the other two undergo an infinite expansion. We discuss also the relation between the dynamics of the model and the intermediate inflation phenomenology.

Citations

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