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Entropic accelerating universe

Title
Entropic accelerating universe
Authors
Easson D.A.Frampton P.H.Smoot G.F.
Ewha Authors
George F. Smoot
Issue Date
2011
Journal Title
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ISSN
0370-2693JCR Link
Citation
vol. 696, no. 3, pp. 273 - 277
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
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. © 2010 Elsevier B.V.
DOI
10.1016/j.physletb.2010.12.025
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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