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Título: | Criticality in the collapse of spherically symmetric massless scalar fields in semiclassical loop quantum gravity |
Autor: | Benítez Martínez, Florencia Gambini, Rodolfo H. Liebling, Steve Pullin, Jorge |
Tipo: | Preprint |
Palabras clave: | Classical black holes, General relativity equations, Loop quantum gravity, Singularities in general relativity |
Fecha de publicación: | 2021 |
Resumen: | In a recent paper we showed that the collapse to a black hole in one-parameter families of initial data for massless, minimally coupled scalar fields in spherically symmetric semi-classical loop quantum gravity exhibited a universal mass scaling similar to the one in classical general relativity. In particular, no evidence of a mass gap appeared as had been suggested by previous studies. The lack of a mass gap indicated the possible existence of a self-similar critical solution as in general relativity. Here we provide further evidence for its existence. Using an adaptive mesh refinement code, we show that "echoes" arise as a result of the discrete self-similarity in space-time. We also show the existence of "wiggles" in the mass scaling relation, as in the classical theory. The results from the semi-classical theory agree well with those of classical general relativity unless one takes unrealistically large values for the polymerization parameter. |
Descripción: | Publicado también en: Physical Review D, 2021, 104(2): 024008. DOI: 10.1103/PhysRevD.104.024008 |
Editorial: | arXiv |
EN: | General Relativity and Quantum Cosmology, 2021, arXiv:2106.00674, Jun 2021 |
Financiadores: | ANII: FCE_1_2019_1_155865 |
Citación: | Benítez Martínez, F, Gambini, R, Liebling, S [y otro autor] "Criticality in the collapse of spherically symmetric massless scalar fields in semiclassical loop quantum gravity". General Relativity and Quantum Cosmology. [en línea] 2021, arXiv:2106.00674, Jun 2021. 7 h. DOI: 10.48550/arXiv.2106.00674 |
Aparece en las colecciones: | Publicaciones académicas y científicas - Facultad de Ciencias |
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2106.00674.pdf | Preprint | 372,94 kB | Adobe PDF | Visualizar/Abrir |
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