space Cosmic Scale

If the universe has a 'minimum pixel size,' it would actually make gravity a little weaker at bending light.

April 2, 2026

Original Paper

Minimal Length Effects on Keplerian Scattering and Gravitational Lensing

Mykola Samar, Mariia Seniak

arXiv · 2604.01177

The Takeaway

Quantum gravity theories suggest space cannot be infinitely divided and must have a 'minimum length.' This research calculates that such a limit would actually reduce the gravitational lensing effect, potentially allowing us to see the 'resolution' of the universe in telescope images of distant galaxies.

From the abstract

We study the impact of a minimal length, implied by generalized uncertainty principles and quantum gravity models, on unbounded (scattering) trajectories in the Kepler problem. The analysis is based on the precession of the Hamilton vector, which serves as a sensitive probe of orbital perturbations. Within the framework of the deformed Heisenberg algebra, we derive the correction to the trajectory arising from minimal length effects. It is shown that these quantum-gravitational corrections lead