Thermal origin of the attractor-to-general-relativity in scalar-tensor gravity

TL;DR

This paper introduces a thermal analogy to describe how scalar-tensor gravity converges to or departs from general relativity, providing insights into the evolution of gravity in the universe's history.

Contribution

It presents a novel thermal analogy framework for understanding the convergence of scalar-tensor gravity to general relativity in cosmology.

Findings

Thermal analogy effectively models gravity's evolution.

Early universe deviations from GR are characterized.

Approach to GR occurs over cosmic time.

Abstract

The convergence of scalar-tensor gravity to general relativity, or the departure from it, are described in a new analogy with heat dissipation in a viscous fluid. This new thermal picture is applied to cosmology, shedding light on whether gravity deviates from general relativity early on and approaches it later in the cosmic history.