Dark Energy, Induced Gravity and Broken Scale Invariance

Abstract

We study the cosmological evolution of an induced gravity model with a self-interacting scalar field $\sigma$ 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 $\gamma$ coupling to the Ricci curvature $\gamma {\sigma }^{2}R$.

6 pages, 5 figures, 1 table: final version accepted for publication in PLB

References in corpus (2)

• New Hubble Space Telescope Discoveries of Type Ia Supernovae at z > 1: Narrowing Constraints on the Early Behavior of Dark Energy
• The Limits of Extended Quintessence

Cited by in corpus (1)

• Scalar-tensor cosmologies: fixed points of the Jordan frame scalar field