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- W1897116192 abstract "In this paper we seek for relevant information on the asymptotic cosmological dynamics of the Brans-Dicke theory of gravity for several self-interaction potentials. By means of the simplest tools of the dynamical systems theory, it is shown that the general relativity de Sitter solution is an attractor of the Jordan frame (dilatonic) Brans-Dicke theory only for the exponential potential $U(ensuremath{varphi})ensuremath{propto}mathrm{exp}ensuremath{varphi}$, which corresponds to the quadratic potential $V(ensuremath{phi})ensuremath{propto}{ensuremath{phi}}^{2}$ in terms of the original Brans-Dicke field $ensuremath{phi}=mathrm{exp}ensuremath{varphi}$, or for potentials which approach to $mathrm{exp}ensuremath{varphi}$ at the stable point. At the de Sitter attractor, as well as at the stiff-matter equilibrium configurations, the dilaton is necessarily massless. We find bounds on the Brans-Dicke coupling constant ${ensuremath{omega}}_{mathrm{BD}}$, which are consistent with well-known results." @default.
- W1897116192 created "2016-06-24" @default.
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- W1897116192 date "2015-12-23" @default.
- W1897116192 modified "2023-09-27" @default.
- W1897116192 title "Brans-Dicke cosmology does not have the<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:mi mathvariant=normal>Λ</mml:mi><mml:mi>CDM</mml:mi></mml:mrow></mml:math>phase as a universal attractor" @default.
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- W1897116192 doi "https://doi.org/10.1103/physrevd.92.124056" @default.
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