Probing vortices in 4He nanodroplets -: art. no. 105302

We present static and dynamical properties of linear vortices in He-4 droplets obtained from density functional calculations. By comparing the adsorption properties of different atomic impurities embedded in pure droplets and in droplets where a quantized vortex has been created, we suggest that Ca atoms should be the dopant of choice to detect vortices by means of spectroscopic experiments.