Cosmological dynamics of a bulk scalar field in the DGP setup

Details Cosmological dynamics of a bulk scalar field in the DGP setup Cosmological dynamics of a bulk scalar field in the DGP setup

Apr 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012ap%26ss.338..363n&link_type=abstract

Astrophysics and Space Science, Volume 338, Issue 2, pp.363-373

Astronomy and Astrophysics

Astrophysics

Braneworld Cosmology, Induced Gravity, Bulk Scalar Field, Phantom-Like Behavior

Scientific paper

We reconsider the issue of cosmological dynamics in a DGP setup with a bulk scalar field. The ghost-free, normal branch of this DGP-inspired braneworld scenario has the potential to realize a self-consistent phantom-like behavior. The roles played by the bulk canonical scalar field on this phantom-like dynamics are explored. Within a dynamical system approach, the effective phantom nature of the scenario is investigated with details. This analysis shows that there is a stable, late-time de Sitter phase.

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