English

Can Effects of a Generalized Uncertainty Principle Appear in Compact Stars?

General Relativity and Quantum Cosmology 2025-08-21 v1

Abstract

In the present contribution, a preliminary analysis of the effects of the Generalized Uncertainty Principle (GUP) with a minimum length, in the context of compact stars, is performed. On basis of a deformed Poisson canonical algebra with a parametrized minimum length scale that induces deviations from conventional Quantum Mechanics, fundamental questions involving the consistence, evidences and proofs of this approach as a possible cure for unbounded energy divergence are outlined. The incorporation of GUP effects into semiclassical 2N-dimensional systems is made by means of a time-invariant distortion transformation applied to their non-deformed counterparts. Assuming the quantum hadrodynamics σω\sigma-\omega approach as a toy-model, due to its simplicity and structured description of neutron stars, we perform a preliminary analysis of GUP effects with a minimum spacetime length on these compact objects. The corresponding results for the equation of state and the mass-radius relation for neutron stars are in tune with recent observations with a maximum mass around 2.5M2.5 M_{\odot} and radius close to 1212 km. Our results also indicate the smallness of the noncommutative scale.

Keywords

Cite

@article{arxiv.2508.14296,
  title  = {Can Effects of a Generalized Uncertainty Principle Appear in Compact Stars?},
  author = {João Gabriel Galli Gimenez and Dimiter Hadjimichef and Peter O. Hess and Marcelo Netz-Marzola and César A. Zen Vasconcellos},
  journal= {arXiv preprint arXiv:2508.14296},
  year   = {2025}
}