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Rydberg states of alkali atoms on superfluid helium nanodroplets: Inside or outside?

Abstract

Electronic excitations of an electron bound to an alkali metal ion inside a droplet of superfluid 4He are computed via a combination of helium density functional theory and the numerical integration of the Schrödinger equation for a single electron in a modified, He density dependent atomic pseudopotential. The application of a spectral method to the radial part of the valence electron wavefunction allows the computation of highly excited Rydberg states. For low principal quantum numbers the energy required to push the electron outward is larger than the solvation energy of the ion. However, for larger principal quantum numbers the situation is reversed, which suggests the stability of a system where the ion sits inside the droplet while the valence electron orbits the nanodroplet.

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Publication details

The article was received on 11 Apr 2017, accepted on 12 May 2017 and first published on 16 May 2017


Article type: Paper
DOI: 10.1039/C7CP02332D
Citation: Phys. Chem. Chem. Phys., 2017, Accepted Manuscript
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    Rydberg states of alkali atoms on superfluid helium nanodroplets: Inside or outside?

    J. V. Pototschnig, F. Lackner, A. W. Hauser and W. E. E. Ernst, Phys. Chem. Chem. Phys., 2017, Accepted Manuscript , DOI: 10.1039/C7CP02332D

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