Instability of a massless scalar field confined in a perfectly reflecting spherical cavity

19.01.2023 15:15 - 16:00

M. Maliborski (Vienna)

Abstract: I will discuss a spherically symmetric gravitating model that exhibits turbulent dynamics, conjectured to be the core mechanism of instability of the anti-de Sitter solution. Using the resonant approximation, I will provide evidence that generic arbitrarily small initial perturbations of amplitude epsilon lead to a black hole formation on the timescale 1/epsilon^2. Furthermore, I will argue that the perturbative approximation remains valid up to apparent horizon formation.       

Organiser:
Gravitationsphysik
Location:

AR Gravitation, Währingerstr. 17, SR A, 2. Stk.