Constructing allowed complex metrics from black holes
Abstract
Abstract We use diffeomorphic mappings to connect black hole metrics with complex solutions allowed by the Kontsevich–Segal (KS) criterion. By swapping radial and time-like coordinates and applying complex mappings, we derive dynamic metrics sufficiently well-defined for a quantum field theory. This is shown for static and rotating black holes, mapping their interiors into the Kantowski–Sachs and a specific Gowdy-type cosmological model. We offer interpretations of the period during which the KS criterion holds.
Fields of Study & Subjects
Black Holes and Theoretical Physics
Astrophysical Phenomena and Observations
Cosmology and Gravitation Theories
Publication details
- Journal / source
- Classical and Quantum Gravity
- Volume
- 43
- Issue
- 17
- Pages
- 175008–175008
- Publication date
- 17 August 2026