Quantum Gravity and the Cosmological Constant Problem

TL;DR

This paper presents a nonlocal quantum gravity model that suppresses the vacuum energy, addressing the cosmological constant problem by aligning theoretical predictions with observations.

Contribution

It introduces a finite, unitary nonlocal quantum gravity framework that effectively reduces the cosmological constant to observed levels.

Findings

Exponential suppression of vacuum density achieved

Agreement with observational bounds on cosmological constant

A novel nonlocal approach to quantum gravity

Abstract

A finite and unitary nonlocal formulation of quantum gravity is applied to the cosmological constant problem. The entire functions in momentum space at the graviton-standard model particle loop vertices generate an exponential suppression of the vacuum density and the cosmological constant to produce agreement with their observational bounds.