Dark Energy, Induced Gravity and Broken Scale Invariance
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We study the cosmological evolution of an induced gravity model with a self-interacting scalar field $σ$ and in the presence of matter and radiation. Such model leads to Einstein Gravity plus a cosmological constant as a stable attractor among homogeneous cosmologies and is therefore a viable dark-energy (DE) model for a wide range of scalar field initial conditions and values for its positive $γ$ coupling to the Ricci curvature $γσ^{2}R$.
6 pages, 5 figures, 1 table: final version accepted for publication in PLB
6 pages, 5 figures, 1 table: final version accepted for publication in PLB