HAL : in2p3-00714076, version 1

arXiv : 1002.4278

Code Bibliographique ADS : 2011PhLB..696..273E

DOI : 10.1016/J.PHYSLETB.2010.12.025

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Physics Letters B 696 (2011) 273-277

Entropic accelerating universe

D.A. Easson, P.H. Frampton, G.F. Smoot1

(01/2011)

To accommodate the observed accelerated expansion of the universe, one popular idea is to invoke a driving term in the Friedmann-Lemaître equation of dark energy which must then comprise 70% of the present cosmological energy density. We propose an alternative interpretation which takes into account the entropy and temperature intrinsic to the horizon of the universe due to the information holographically stored there. Dark energy is thereby obviated and the acceleration is due to an entropic force naturally arising from the information storage on the horizon surface screen. We consider an additional quantitative approach inspired by surface terms in general relativity and show that this leads to the entropic accelerating universe.

1 :	APC - AstroParticule et Cosmologie

équipe(s) de recherche : APC - Cosmologie et Gravitation

Thème(s)

:

Planète et Univers/Astrophysique/Cosmologie et astrophysique extra-galactique Physique/Astrophysique/Cosmologie et astrophysique extra-galactique

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Soumis le : Mardi 3 Juillet 2012, 12:52:37

Dernière modification le : Jeudi 5 Juillet 2012, 12:31:17