Geometric aspects of charged black holes in Palatini theories

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

Olmo, Gonzalo J.^1,2 ; Rubiera-Garcia, D.^3 ; Sanchez-Puente, Antonio^1

Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Universidad de Valencia, Burjassot, Valencia

46100, Spain^1

Departamento de Física, Universidade Federal da Paraíba, João Pessoa, Paraíba

58051-900, Brazil^2

Center for Field Theory and Particle Physics, Department of Physics, Fudan University, 220 Handan Road, Shanghai

200433, China^3

关键词: Black holes;    Effective mass;    Electric flux;    Event horizon;    Geodesic structure;    Geometric properties;    Gravity theory;    Mathematical derivation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/600/1/012042/pdf
DOI  :  10.1088/1742-6596/600/1/012042

来源: IOP

【 摘 要 】

Charged black holes in gravity theories in the Palatini formalism present a number of unique properties. Their innermost structure is topologically nontrivial, representing a wormhole supported by a sourceless electric flux. For certain values of their effective mass and charge curvature divergences may be absent, and their event horizon may also disappear yielding a remnant. We give an overview of the mathematical derivation of these solutions and discuss their geodesic structure and other geometric properties.