A Minimal Model for Dilatonic Gravity
P. P. Fiziev
Abstract
We study a new minimal scalar-tensor model of gravity with Brans-Dicke factor ω(Φ) 0 and cosmological factor Π(Φ). The constraints on Π(Φ) from known gravitational experiments are derived. We show that almost any time evolution of the scale factor in a homogeneous isotropic Universe can be obtained via properly chosen Π(Φ) and discuss the general properties of models of this type.
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