Scaling Cosmology

Winfried Zimdahl, Diego Pavón

Research output: Contribution to journalArticleResearchpeer-review

133 Citations (Scopus)


We show that with the help of a suitable coupling between dark energy and cold dark matter it is possible to reproduce any scaling solution ρ X α ρMaξ, where ρX and ρM are the densities of dark energy and dark matter, respectively. We demonstrate how the case ξ = 1 alleviates the coincidence problem. Future observations of supernovae at high redshift as well as quasar pairs which are planned to discriminate between different cosmological models will also provide direct constraints on the coupling between dark matter and dark energy.
Original languageEnglish
Pages (from-to)413-422
JournalGeneral Relativity and Gravitation
Publication statusPublished - 1 Mar 2003


  • Cold dark matter
  • Cosmology
  • Scaling solution


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