Gravitational Observations and LQGUP

TL;DR

This paper uses gravitational test data to set tighter bounds on the quantum-gravity parameter in the generalized uncertainty principle, especially when including linear momentum terms, improving previous constraints.

Contribution

It provides new, more stringent bounds on the quantum-gravity parameter with linear and quadratic momentum terms using multiple gravitational tests.

Findings

Tighter bounds on the quantum-gravity parameter with linear terms.

Stronger constraints than previous quadratic-only bounds.

Enhanced understanding of quantum-gravity effects in gravitational tests.

Abstract

Motivated by recent works, we employ the bounds on the dimensionless quantum-gravity parameter obtained from six gravitational tests in order to obtain bounds on the dimensionless parameter of the generalized uncertainty principle with linear and quadratic terms in momentum. The bounds obtained here are much tighter than those obtained, from the same six gravitational tests, for the dimensionless parameter of the uncertainty principle with only quadratic terms in momentum.