Artículos de revistas
Brane-world cosmology and varying G
Fecha
2010-07Registro en:
Amarilla, Leonardo; Vucetich, Hector; Brane-world cosmology and varying G; World Scientific; International Journal Of Modern Physics A; 25; 18-19; 7-2010; 1-2; 3855
0217-751X
Autor
Amarilla, Leonardo
Vucetich, Hector
Resumen
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.