Maciej Maliborski (Vienna): Instability of a massless scalar field confined in a perfectly reflecting spherical cavity

Donnerstag, 19. Januar 2023 15:15

Ort: Seminarraum A, Währinger Strasse 17, 2. Stock

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.

Location:

Seminarraum A, Währinger Str. 17, 2. Stock