Work

Clarifying Kasner dynamics inside anisotropic black hole with vector hair

Year: 2025

Type: article

Abstract: A bstract We investigate the internal dynamics of hairy black holes in the Einstein-Maxwell-vector theory. The development of the charged vector hair necessarily removes the inner Cauchy horizon and results in an anisotropic black hole ending at a spacelike singularity. The far interior evolution is characterized by the chaotic alternations among different Kasner epochs. We show that those late interior time dynamics of bounces and epochs can be captured analytically. In particular, we obtain three distinct types of transformation laws for the alternation of Kasner epochs analytically, including the Kasner inversion, Kasner transition, and Kasner reflection. Our analytical approach is corroborated by numerical solutions to the full equations of motion. Moreover, we provide a clear explanation of the alternation of Kasner epochs found numerically in the literature.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep04(2025)179

Authors: Rong-Gen Cai, Mei-Ning Duan, Li Li, Fu-Guo Yang

Institutions: Ningbo University, Chinese Academy of Sciences, University of Chinese Academy of Sciences

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: National Natural Science Foundation of China, National Key Research and Development Program of China