Generalised cosmological scaling solutions

Details Generalised cosmological scaling solutions Generalised cosmological scaling solutions

2004-10-05

arxiv.org/abs/astro-ph/0410110v2

Phys.Rev. D71 (2005) 023526

Astronomy and Astrophysics

Astrophysics

Minor alterations and updated bibliography

Scientific paper

10.1103/PhysRevD.71.023526

Motivated by the recent interest in cosmologies arising from energy density modifications to the Friedmann equation, we analyse the scaling behaviour for a broad class of these cosmologies comprised of scalar fields and background barotropic fluid sources. In particular, we determine the corresponding scalar field potentials which lead to attractor scaling solutions in a wide class of braneworld and dark energy scenarios. We show how a number of recent proposals for modifying the Friedmann equation can be thought of as being dual to one another, and determine the conditions under which such dualities arise.

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