Quantum gravity, the cosmological constant, and parity transformation

TL;DR

This paper explores how quantum gravity models based on the generalized uncertainty principle could address the cosmological constant problem, suggesting a high-energy parity transformation of the gravitational position operator as a potential solution.

Contribution

It introduces the idea that parity transformation of the gravitational position operator at high energies may reconcile quantum gravity with the cosmological constant problem.

Findings

GUP models could bridge the gap in cosmological constant values

Parity transformation may be necessary at high energies in quantum gravity

Proposes a new approach linking quantum gravity and cosmological observations

Abstract

One of the leading issues in quantum field theory and cosmology is the mismatch between the observed and calculated values for the cosmological constant in Einstein's field equations of up to 120 orders of magnitude. In this paper, we discuss new methods to potentially bridge this chasm using the generalized uncertainty principle (GUP). We find that if quantum gravity GUP models are the solution to this puzzle, then it may require the gravitationally modified position operator undergo a parity transformation at high energies.