Generalized cosmological scaling solutions

Edmund J. Copeland*, Seung Joo Lee, James E. Lidsey, Shuntaro Mizuno

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)


Motivated by the recent interest in cosmologies arising from energy density modifications to the Friedmann equation, we analyze the scaling behavior 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.

Original languageEnglish
Article number023526
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number2
Publication statusPublished - 2005

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Nuclear and High Energy Physics
  • Mathematical Physics


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