2008/12/18 by A. Arbey
Physics and Astronomy · #Astronomy and Astrophysical Research #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #astro-ph
paper · pdf · doi:10.1051/eas/0936023
published as EAS Publ.Ser.36:161-166, 2009 · 6 pages, 2 figures, contribution to the proceedings of the July 2008 CRAL-IPNL conference "Dark Energy and Dark Matter"
arxiv created 2008/12/18 · openalex publication_date 2009/01/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31
The standard model of cosmology suggests the existence of two components, “dark matter” and “dark energy”, which determine the fate of the Universe. Their nature is still under investigation, and no direct proof of their existences has emerged yet. There exist alternative models which reinterpret the cosmological observations, for example by replacing the dark energy/dark matter hypothesis by the existence of a unique dark component, the dark fluid, which is able to mimic the behaviour of both components. After a quick review of the cosmological constraints on this unifying dark fluid, we will present a model of dark fluid based on a complex scalar field and discuss the problem of the choice of the potential.