Publication : t01/045

Testing Quintessence models with large-scale structure growth

Benabed K. (CEA, DSM, SPhT (Service de Physique Théorique), F-91191 Gif-sur-Yvette, FRANCE)
Bernardeau F. (CEA, DSM, SPhT (Service de Physique Théorique), F-91191 Gif-sur-Yvette, FRANCE)
We explore the possibility of putting constraints on quintessence models with large-scale structure observations. In particular we compute the linear and second order growth rate of the fluctuations in different flavors of quintessence scenarios. We show that effective models of quintessence (e.g. with a constant equation of state) do not account of the results found in more realistic scenarios. The impact of these results on observational quantities such as the shape of the non-linear power spectrum in weak lensing surveys or the skewness of the convergence field are investigated. It appears that the observational signature of quintessence models are specific and rather large. They clearly cannot be mistaken with a change of (Omega_{0}).
Année de publication : 2001
Revue : Phys. Rev. D 64 083501 (2001)
DOI : 10.1103/PhysRevD.64.083501
Preprint : arXiv:astro-ph/0104371
Lien :
PACS : 98.80.Cq, 98.65.Dx, 98.62.Sb
Numéro Exterieur : Code Bibliographique ADS : 2001PhRvD..64h3501B
Langue : Anglais
NB : [10 pp.]

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