Revisiting induced gravity in scalar-tensor thermodynamics

Abstract: Induced gravity, defined as a globally scale-invariant first-generation'' scalar-tensor theory, is investigated within the framework of the thermodynamics of modified gravity theories. Thetemperature of gravity'' and its evolution equation are derived for this model, and the resulting expressions are used to analyse General-Relativity equilibrium states and to investigate the possible existence of an attractor mechanism toward Einstein's theory with a cosmological constant.