653 citations · 1.7k across the 34 of their papers we have counts for
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Quantum vortex instability and black hole superradiance
Sam Patrick, August Geelmuyden, Sebastian Erne +2
Vortices and black holes set the scene for many interesting dynamical processes in physics. Here, we study the dynamical instability of quantised vortices and rotational superradia…
Origin and evolution of the multiply-quantised vortex instability
Sam Patrick, August Geelmuyden, Sebastian Erne +2
We show that the dynamical instability of quantum vortices with more than a single quantum of angular momentum results from a superradiant bound state inside the vortex core. Our c…
The sound-ring radiation of expanding vortex clusters
August Geelmuyden, Sebastian Erne, Sam Patrick +2
We investigate wave-vortex interaction emerging from an expanding compact vortex cluster in a two-dimensional Bose-Einstein condensate. We adapt techniques developed for compact gr…