Seminarium "Modeling of Complex Systems"

In the talk, I will focus on the theoretical description of the rotating impurity interacting with the two-dimensional bosonic bath employing the angulon quasiparticle formalism. The presented results will show the vortex nucleation hinting at the existence of instabilities that were already observed in the 3D systems caused by the transfer of angular momentum between impurity and bath. We additionally investigate the real-time dynamics of the condensate after the rapid spin of the molecule. We hope that our research will give additional insight into recent experimental work with molecules on the surface of superfluid helium droplets.