11 citations · 28 across the 6 of their papers we have counts for
6 papers · 1 filter
A Nonlinear Endpoint of Charged Horizon Instabilities
Zachary Gelles, Frans Pretorius
We numerically construct asymptotically extremal black holes through the nonlinear evolution of a charged scalar field. Our procedure -- which extends the work of Murata-Reall-Tana…
First-Order Viscous Relativistic Hydrodynamics on the Two-Sphere
Lennox S. Keeble, Frans Pretorius
A few years ago, Bemfica, Disconzi, Noronha, and Kovtun (BDNK) formulated the first causal, stable, strongly hyperbolic, and locally well-posed theory of first-order viscous relati…
Accumulation of Charge on an Extremal Black Hole's Event Horizon
Zachary Gelles, Frans Pretorius
We numerically analyze the behavior of a charged scalar field on a fixed extremal Reissner-Nordström background. We find an extension of the Aretakis instability characterized by a…
On turbulence for spacetimes with stable trapping
Gabriele Benomio, Alejandro Cárdenas-Avendaño, Frans Pretorius +1
Motivated by understanding the nonlinear gravitational dynamics of spacetimes admitting stably trapped null geodesics, such as ultracompact objects and black string solutions to ge…
Black Holes Inside and Out 2024: visions for the future of black hole physics
Niayesh Afshordi, Abhay Ashtekar, Enrico Barausse +27
The gravitational physics landscape is evolving rapidly, driven by our ability to study strong-field regions, in particular black holes. Black Holes Inside and Out gathered world e…
Exploring Black Hole Mimickers: Electromagnetic and Gravitational Signatures of AdS Black Shells
Suvendu Giri, Ulf Danielsson, Luis Lehner +1
We study electromagnetic and gravitational properties of AdS black shells (also referred to as AdS black bubbles) -- a class of quantum gravity motivated black hole mimickers, that…