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https://www.ias.ac.in/article/fulltext/pram/062/03/0745-0748

Brane; scalar field; scaling solution

The dynamics of a flat isotropic brane Universe with two-component matter source —perfect fluid with the equation of statep = (γ − 1)ρ and a scalar field with a power-law potentialV ∼ φ^α is investigated. We describe solutions for which the scalar field energy density scales as a power-law of the scale factor. We also describe solutions existing in regions of the parameter space where these scaling solutions are unstable or do not exist.

A V Toporensky¹ N Yu Savchenko¹

1. Sternberg Astronomical Institute, Universitetsky prospect 13, Moscow - 119899, Russia

Published

March 2004