Work

Quantum Dust Cores of Black Holes and Their Quasi‐Normal Modes

Year: 2026

Type: article

Abstract: ABSTRACT The quantum description of a gravitationally collapsed ball of dust proposed by R. Casadio is characterised by a linear effective Misner–Sharp–Hernandez mass function describing a matter core hidden by the event horizon. After reviewing the original model and some of its refinements, we investigate the quasi‐normal mode spectrum of the resulting spacetime and compare it with the Schwarzschild case. Computations are performed within the WKB approximation, based on the Padé approximants up to 13th order. Our analysis shows that deviations from the Schwarzschild spectrum are sensitive to the quantum nature of the core surface.

Source: Fortschritte der Physik

DOI: 10.1002/prop.70108

Authors: T. Bambagiotti, L. Gallerani, A. Mentrelli, A. Giusti, R. Casadio

Institutions: Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, University of Bologna

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,460

Funders: European Cooperation in Science and Technology, Gruppo Nazionale per la Fisica Matematica, Instituto Nazionale di Fisica Nucleare