Fazzini F (2026)
Publication Type: Journal article
Publication year: 2026
Book Volume: 113
Pages Range: 1-9
Article Number: 026020
Journal Issue: 2
DOI: 10.1103/hj85-317t
Effective models of gravitational collapse inspired by loop quantum gravity typically resolve the central singularity by replacing it with a bounce of the matter density in the Planckian regime. In the specific model analyzed here, this bounce is generally followed by the formation of shell-crossing singularities. The purpose of this work is to provide a physically meaningful extension of spacetime beyond the shell-crossing singularity. To this end, we derive the dynamics of a dust thin shell within the effective Hamiltonian framework. The motion of the shell remains timelike throughout: after undergoing a quantum-gravitational bounce, it expands and eventually emerges from the white hole vacuum region.
APA:
Fazzini, F. (2026). Effective LQG dynamics of a thin shell and the fate of a collapsing star. Physical Review D, 113(2), 1-9. https://doi.org/10.1103/hj85-317t
MLA:
Fazzini, Francesco. "Effective LQG dynamics of a thin shell and the fate of a collapsing star." Physical Review D 113.2 (2026): 1-9.
BibTeX: Download