Conformal fixed point, Cosmological Constant and Quintessence

TL;DR

This paper proposes a connection between a conformal fixed point in fundamental theory and the cosmological constant problem, suggesting that the universe's acceleration is due to a crossover in coupling constants leading to quintessence.

Contribution

It introduces a novel approach linking conformal fixed points to cosmological acceleration and quintessence, providing a new perspective on dark energy.

Findings

Link between conformal fixed point and cosmological constant problem

Crossover in coupling constants explains universe's acceleration

Supports quintessence as a dynamic dark energy model

Abstract

We connect a possible solution for the ``cosmological constant problem'' to the existence of a (postulated) conformal fixed point in a fundamental theory. The resulting cosmology leads to quintessence, where the present acceleration of the expansion of the universe is linked to a crossover in the flow of coupling constants.