Homogeneity, flatness, and "large" extra dimensions - art. no. 231303

Citation
Gd. Starkman et al., Homogeneity, flatness, and "large" extra dimensions - art. no. 231303, PHYS REV L, 8723(23), 2001, pp. 1303
Citations number
25
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
8723
Issue
23
Year of publication
2001
Database
ISI
SICI code
0031-9007(200112)8723:23<1303:HFA"ED>2.0.ZU;2-B
Abstract
We consider a model in which the Universe is the direct product of an ordin ary (3 + 1)-dimensional space-a brane where all the standard model fields a re confined-and a compact hyperbolic manifold. The decay of massive Kaluza- Klein modes leads to the injection of bulk entropy into the observable Univ erse. The large statistical averaging inherent in the collapse of the initi al entropy onto the brane smoothes out any initial inhomogeneities in the d istribution of matter and of three-curvature.