Dark Energy vs. Dark Matter: Towards a Unifying Scalar Field?

Issue		EAS Publications Series Volume 36, 2009 Dark Energy and Dark Matter: Observations, Experiments and Theories


Page(s)		161 - 166
DOI		10.1051/eas/0936023
Published online		30 May 2009

Dark Energy and Dark Matter: Observations, Experiments and Theories
E. Pécontal, T. Buchert, Ph. Di Stefano and Y. Copin (eds)
EAS Publications Series, 36 (2009) 161-166
DOI: 10.1051/eas/0936023

Dark Energy vs. Dark Matter: Towards a Unifying Scalar Field?

A. Arbey

Université de Lyon, 69000 Lyon, France; Université Lyon 1, 69622 Villeurbanne, France; Centre de Recherche Astrophysique de Lyon, Observatoire de Lyon, 9 avenue Charles André, 69561 Saint-Genis Laval Cedex, France; CNRS, UMR 5574, École Normale Supérieure de Lyon, Lyon, France;

arbey@obs.univ-lyon1.fr

Published online: 30 May 2009

Abstract
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.

What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access. An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.

If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
You can define your own OpenURL resolver with your EDPS Account. In this case your choice will be given priority over that of your library.
You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.