Work

Mass (re)distribution for quantum dust cores of black holes

Year: 2025

Type: article

Abstract: The collective ground state for a spherical symmetric dust ball has been investigated recently in R. Casadio [Phys. Lett. B 843 (2023) 138055]. In this study, we refine that model by obtaining a mass distribution that accounts for the superposition of wave functions across different layers. The refined mass distribution shows significant deviations from the approximation without quantum superpositions. Specifically, the new nearly parabolic distribution replaces the linear mass profile of the original work, featuring an overall downward concavity, which leads to a nonvanishing tension. Notably, the regularity of the metric and causal structure are preserved in the refined analysis.

Source: International Journal of Modern Physics D

DOI: 10.1142/s021827182550035x

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

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

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Science and Technology Facilities Council

Awards: A network of clocks for measuring the stability of fundamental constants, PDRA/ECR for QSNET