Título:
Criticality in the collapse of spherically symmetric massless scalar fields in semiclassical loop quantum gravity
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Autor:
Benítez Martínez, Florencia
Gambini, Rodolfo H.
Liebling, Steve
Pullin, Jorge
Gambini, Rodolfo H.
Liebling, Steve
Pullin, Jorge
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Tipo de documento:
Preprint
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Palabras clave:
Classical black holes
General relativity equations
Loop quantum gravity
Singularities in general relativity
General relativity equations
Loop quantum gravity
Singularities in general relativity
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Año de publicación:
2021
Contenido:
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
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arXiv
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General Relativity and Quantum Cosmology, 2021, arXiv:2106.00674, Jun 2021
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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
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Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)
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| Ficheros | Descripción | Tamaño | Formato | ||
|---|---|---|---|---|---|
| 2106.00674.pdf | Preprint | 372.94 KB | Adobe PDF |