The Unifying Dark Fluid Model

Details The Unifying Dark Fluid Model The Unifying Dark Fluid Model

2009-11-16

arxiv.org/abs/0911.3163v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

8 pages, 4 figures, contribution to the proceedings of the conference "Invisible Universe", Paris, June 29 - July 3, 2009, Fra

Scientific paper

The standard model of cosmology relies on the existence of two components, "dark matter" and "dark energy", which dominate the expansion of the Universe. There is no direct proof of their existence, and their nature is still unknown. Many alternative models suggest other cosmological scenarios, and in particular the dark fluid model replace the dark matter and dark energy components by a unique dark component able to mimic the behaviour of both components. The current cosmological constraints on the unifying dark fluid model is discussed, and a dark fluid model based on a complex scalar field is presented. Finally the consequences of quantum corrections on the scalar field potential are investigated.

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