We give conditions to obtain cosmological asymptotic freedom in scalar-tensor theories of gravity. We show that this feature can be achieved in FRW flat spacetimes since we obtain singularity free solutions where the effective gravitational constant $G_eff\rightarrow 0$ for $t\rightarrow -\infty$ and, for some of them, $G_eff\rightarrow G_N$ for $t\rightarrow\infty$, where $G_N$ is the Newton constant.
Asymptotic freedom from induced gravity cosmology / Capozziello, Salvatore; de Ritis, Ruggiero. - In: PHYSICS LETTERS A. - ISSN 0375-9601. - (1996).
Asymptotic freedom from induced gravity cosmology
Salvatore Capozziello
;
1996
Abstract
We give conditions to obtain cosmological asymptotic freedom in scalar-tensor theories of gravity. We show that this feature can be achieved in FRW flat spacetimes since we obtain singularity free solutions where the effective gravitational constant $G_eff\rightarrow 0$ for $t\rightarrow -\infty$ and, for some of them, $G_eff\rightarrow G_N$ for $t\rightarrow\infty$, where $G_N$ is the Newton constant.File in questo prodotto:
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