Probing vortices in 4He nanodroplets.

@article{Ancilotto2003ProbingVI,
  title={Probing vortices in 4He nanodroplets.},
  author={Francesco Ancilotto and Manuel Barranco and Mart{\'i} Pi},
  journal={Physical review letters},
  year={2003},
  volume={91 10},
  pages={
          105302
        }
}
We present static and dynamical properties of linear vortices in 4He 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. 
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