期刊
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
卷 25, 期 18-19, 页码 3835-3856出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217751X10049700
关键词
Brane-world cosmology; varying constants
资金
- CONICET
We consider a brane-world cosmological model coupled to a bulk scalar field. Since the brane tension turns out to be proportional to Newton's coupling G, in such a model a time variation of G naturally occurs. By resorting to available bounds on the variation of G, the parameters of the model are constrained. The constraints coming from nucleosynthesis and CMB result to be the severest ones.
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