English

Generalized uncertainty principle and Asymptotic Safe gravity

High Energy Physics - Theory 2022-07-13 v1 General Relativity and Quantum Cosmology Quantum Physics

Abstract

We present a procedure to link the deformation parameter β\beta of the generalized uncertainty principle (GUP) to the two free parameters \om\om and γ\gamma of the running Newtonian coupling constant of the Asymptotic Safe gravity (ASG) program. To this aim, we compute the Hawking temperature of a black hole in two different ways. The first way involves the use of the GUP in place of the Heisenberg uncertainty relations, and therefore we get a deformed Hawking temperature containing the parameter β\beta. The second way involves the deformation of the Schwarzschild metric due to the Newtonian coupling constant running according to the AS gravity prescription. The comparison of the two techniques yields a relation between β\beta and \om\om, γ\gamma. As a particular case, we discuss also the so called ξ\xi-model. The relations between β\beta and \om\om, ξ\xi allow us to transfer upper bounds from one parameter to the others.

Keywords

Cite

@article{arxiv.2204.07416,
  title  = {Generalized uncertainty principle and Asymptotic Safe gravity},
  author = {Gaetano Lambiase and Fabio Scardigli},
  journal= {arXiv preprint arXiv:2204.07416},
  year   = {2022}
}

Comments

10 pages, no figures

R2 v1 2026-06-24T10:49:05.432Z