Do transient white holes have a place in Nature?

Spanish Relativity Meeting: almost 100 years after Einstein's revolution

Barceló, Carlos^1 ; Carballo-Rubio, Raúl^1 ; Garay, Luis J.^2,3 ; Jannes, Gil^4

Instituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía, Granada

18008, Spain^1

Departamento de Física Teórica II, Universidad Complutense de Madrid, Madrid

28040, Spain^2

Instituto de Estructura de la Materia (IEM-CSIC), Serrano 121, Madrid

28006, Spain^3

Modelling and Numerical Simulation Group, Universidad Carlos III de Madrid, Avda. de la Universidad 30, Leganés

28911, Spain^4

关键词: General Relativity;    Gravitational collapse;    Kruskal;    Physical application;    Physical level;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/600/1/012033/pdf
DOI  :  10.1088/1742-6596/600/1/012033

来源: IOP

【 摘 要 】

The white-hole sector of Kruskal's solution is almost never used in physical applications. However, it can provide a radically different take on the gravitational collapse process, avoiding the problems appearing within the standard paradigm. In this contribution we will try to draw attention to some bouncing geometries that make a democratic usage of the black and white sectors of Kruskal's solution. We will argue that this type of behaviour could be perfectly natural in some approaches to the next physical level beyond classical General Relativity.