Probing vortices in 4He nanodroplets
Francesco Ancilotto, Manuel Barranco, and Marti Pi
TL;DR
This paper investigates the static and dynamic characteristics of linear vortices in helium-4 nanodroplets using density functional theory, proposing calcium atoms as effective probes for experimental vortex detection.
Contribution
It introduces a density functional approach to study vortices in helium droplets and suggests calcium atoms as optimal dopants for spectroscopic vortex detection.
Findings
Calcium atoms are effective for spectroscopic detection of vortices.
Density functional calculations reveal vortex properties in helium droplets.
Comparison of impurity adsorption in vortex and non-vortex droplets.
Abstract
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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