Phenomenology of a realistic accelerating Universe using only Planck-scalephysics

Authors
Albrecht, A Skordis, C
Citation
A. Albrecht et C. Skordis, Phenomenology of a realistic accelerating Universe using only Planck-scalephysics, PHYS REV L, 84(10), 2000, pp. 2076-2079
Citations number
38
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
84
Issue
10
Year of publication
2000
Pages
2076 - 2079
Database
ISI
SICI code
0031-9007(20000306)84:10<2076:POARAU>2.0.ZU;2-E
Abstract
Modern data are showing increasing evidence that the Universe is accelerati ng. So far, all attempts to account for the acceleration have required some fundamental dimensionless quantities to be extremely small. We show how a class of scalar field models (which may emerge naturally from superstring t heory) can account for acceleration which starts in the present epoch with all the potential parameters O(1) in Planck units.