Jump to main content
Jump to site search


Quantum-classical dynamics of the capture of neon atoms by superfluid helium nanodroplets

Abstract

The capture of a Ne atom by a superfluid helium nanodroplet, Ne + (4He)N → Ne@(4He)N’ + (N-N’) 4He, was studied using a hybrid quantum (helium)-classical (Ne) approach and taking into account the angular momentum. The atom is captured by (4He)N and follows elliptical rotating trajectories, and large energy and angular momentum transfer from the atom to the nanodroplet occur. Helium atoms evaporation from (4He)N allows to remove the excess of energy and angular momentum of the doped nanodroplet. The behaviours observed for angular momentum different from zero are similar to the zero angular momentum case. The angular momentum of the Ne atom can induce vortex nucleation for high enough initial angular momentum values (~176.3-220.3 ℏ). Vortices arise from collapse of the surface excitations (ripplons) and are long-lived for some initial conditions. Comparison with a previous quantum dynamics study of our own at zero angular momentum shows that quantum effects are not important under the initial conditions examined here. Besides, a comparison with the scarce information available on other systems has been performed, showing the rich variety of behaviours that can be observed in the solvation of impurities by superfluid helium. More efforts are welcome in order to obtain a deeper insight into the dynamics of the capture process, especially in the vortex formation context.

Back to tab navigation

Supplementary files

Publication details

The article was received on 13 Aug 2018, accepted on 06 Nov 2018 and first published on 06 Nov 2018


Article type: Paper
DOI: 10.1039/C8CP05140B
Citation: Phys. Chem. Chem. Phys., 2018, Accepted Manuscript
  • Open access: Creative Commons BY license
  •   Request permissions

    Quantum-classical dynamics of the capture of neon atoms by superfluid helium nanodroplets

    M. Blancafort-Jorquera, A. Vilà and M. Gonzalez, Phys. Chem. Chem. Phys., 2018, Accepted Manuscript , DOI: 10.1039/C8CP05140B

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements