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arXiv · cond-mat/0401542

Excitation spectra of a 3He impurity on 4He clusters

S. Fantoni·R. Guardiola·J. Navarro
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Abstract

The diffusion Monte Carlo technique is used to calculate and analyze the excitation spectrum of a single 3He atom bound to a cluster with N 4He atoms, with the aim of establishing the most adequate filling ordering of single-fermion orbits to the mixed clusters with a large number of 3He atoms. The resulting ordering looks like the rotational spectrum of a diatomic molecule, being classified only by the angular momentum of the level, although vibrational-like excitations appear at higher energies for sufficiently large N.

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S. Fantoni, R. Guardiola, J. Navarro. 2004-01-27. Excitation spectra of a 3He impurity on 4He clusters. https://doi.org/10.1103/physreva.70.023206

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