English

Quantum gravity effects on particle creation and evaporation in a non-commutative black hole via mass deformation

General Relativity and Quantum Cosmology 2025-07-02 v2 High Energy Physics - Theory

Abstract

In this work, we explore a gravitational non-commutative black hole by gauging the de Sitter SO(4,1) group and employing the Seiberg-Witten map. Specifically, we examine modifications of non-commutativity represented through mass deformation. Initially, we address modifications to Hawking radiation for bosonic particle modes by analyzing the Klein-Gordon equation in curved spacetimes. We compute the Bogoliubov coefficients, showing how Θ\Theta introduces a correction to the amplitude associated with particle creation. Additionally, we derive the power spectrum and the Hawking temperature within this framework. We also derive Hawking radiation from a tunneling perspective, leading to expressions for the power spectrum and particle number density. A similar analysis is performed for fermion particles. Remarkably, we obtain an analytical expression for black hole evaporation lifetime and compare our results with recent estimates of non-commutativity in the literature.

Keywords

Cite

@article{arxiv.2409.03566,
  title  = {Quantum gravity effects on particle creation and evaporation in a non-commutative black hole via mass deformation},
  author = {A. A. Araújo Filho and N. Heidari and Ali Övgün},
  journal= {arXiv preprint arXiv:2409.03566},
  year   = {2025}
}

Comments

29 pages, 4 figures and 1 table -- accepted for publication in International Journal of Geometric Methods in Modern Physics