Regular Schwarzschild black holes and cosmological models
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.
Authors
- Roberto Casadio (ORCID: https://orcid.org/0000-0002-1330-7787)
- Jorge Ovalle (ORCID: https://orcid.org/0000-0002-4988-7891)
- Alexander Yu. Kamenshchik (ORCID: https://orcid.org/0000-0002-0575-486X)
Institutions
- Istituto Nazionale di Fisica Nucleare (IT)
- University of Tarapacá (CL)
- Silesian University in Opava (CZ)
- Mater Research (AU)
- Applied Mathematics (United States) (US)
- University of Bologna (IT)
Publication Details
- Journal
- Physical review. D/Physical review. D.
- Published
- 2025-03-11
- DOI
- https://doi.org/10.1103/physrevd.111.064036
- Citations
- 10
- Primary Topic
- Black Holes and Theoretical Physics
- Type
- article
- Field-Weighted Citation Impact
- 18.70
Funders
- Agencia Nacional de Investigación y Desarrollo
- Instituto Nazionale di Fisica Nucleare
- Fondo Nacional de Desarrollo Científico y Tecnológico