4 papers
When is a sloshing vortex an analogue black hole bomb?
Sam Patrick, Leonardo Solidoro, MaurÃcio Richartz +4
Draining vortices provide a powerful platform for simulating black hole phenomena in tabletop experiments. In realistic fluid systems confined within a finite container, low-freque…
On the origin of quasinormal modes in semi-open systems
Leonardo Solidoro, Sam Patrick, Ruth Gregory +1
Astrophysical black holes are open systems which, when perturbed, radiate quasi-normal modes (QNMs) to infinity. By contrast, laboratory analogues are necessarily finite-sized, pre…
Rabi oscillations with close-range quantum vortex states
Sam Patrick
Quantum vortices separated through distances much larger than their core size interact via their long-range velocity field. At smaller separations, however, the influence of the co…
Ultra slow-roll with a black hole
Lewis Croney, Ruth Gregory, Sam Patrick
We investigate ultra slow-roll inflation with a seed black hole in a de Sitter background. By numerically tracking transitions from slow-roll to ultra slow-roll inflation, we find…