Sequestering Mechanism in Scalar-Tensor Gravity

TL;DR

This paper predicts the ratio of dark energy to other components in the universe using a sequestering mechanism within scalar-tensor gravity, proposing a solution to the cosmological constant problem.

Contribution

It introduces a theoretical framework combining sequestering and scalar-tensor gravity to explain dark energy-matter ratio.

Findings

Identifies parameter regions consistent with observed dark energy-matter ratio.

Provides a specific scale factor model for Big-Crunch scenario.

Suggests a viable solution to the cosmological constant problem.

Abstract

We make a theoretical prediction for the ratio of the dark energy to other components in the Universe based on the scenario of the sequestering mechanism which was recently proposed as one possible way to solve the cosmological constant problem. In order to evaluate the value of dark energy and the others, we assume a specific scale factor which describes the Big-Crunch scenario in the scalar-tensor theory. We specify the parameter region where the one can explain the observed dark energy-matter ratio.