Work

Regular Schwarzschild black holes and cosmological models

Year: 2025

Type: article

Abstract: We study regular Schwarzschild black holes in general relativity as an alternative to the singular counterpart. We analyze two types of solutions which are completely parametrized by the Arnowitt--Deser--Misner mass alone. We find that both families of regular solutions contain a de Sitter condensate at the core and admit (quasi) extremal black hole configurations in which the two horizons are arbitrarily close. Cosmological models based on these regular configurations are also analyzed, finding that they describe nontrivial Kantowski-Sachs universes free of singularities.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/physrevd.111.064036

Authors: Roberto Casadio, Alexander Kamenshchik, Jorge Ovalle

Institutions: Istituto Nazionale di Fisica Nucleare, University of Bologna, University of Tarapacá, Silesian University in Opava

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green