Fig. 2: Observation of the orbiting vortex trajectory.
From: Mutual friction and vortex Hall angle in a strongly interacting Fermi superfluid
a Imaging individual vortices at different evolution times. Images are averaged over 2–4 experimental realizations. Curved arrows represent the path of the free, orbiting vortex as a function of time. b Relative position between the vortices for different realizations as a function of time, encoded by their hue. c Time evolution of the standard deviation of the angular position Δθ for the data in (b). Full blue diamonds represent values obtained from the experimental data, empty red circles are obtained from DPVM time evolution. For each evolution time, 1000 independent DPVM time evolutions are performed featuring different initial positions of the mobile vortex within its measured confidence range (see Fig. 1c).
