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Title: Microscopic study of He2-SF6 trimers
Author: Barletta, P.
Fabrocini, A.
Kievsky, A.
Navarro Faus, Jesús
Polls Martí, Artur
Keywords: Microagregats
Heli líquid
Microscòpia de materials
Gasos rars
Liquid helium
Microscopy of materials
Rare gases
Issue Date: 2003
Publisher: The American Physical Society
Abstract: The He2-SF6 trimers, in their different He isotopic combinations, are studied in the framework of both the correlated Jastrow approach and the correlated hyperspherical harmonics (CHH) expansion method. The energetics and structure of the He-SF6 dimers are analyzed, and the existence of a characteristic rotational band in the excitation spectrum is discussed, as well as the isotopic differences. The binding energies and the spatial properties of the trimers, in their ground and lowest lying excited states, obtained by the Jastrow ansatz are in excellent agreement with the results of the converged CHH expansion. The introduction of the He-He correlation makes all trimers bound by largely suppressing the short range He-He repulsion. The structural properties of the trimers are qualitatively explained in terms of the shape of the interactions, Pauli principle, and masses of the constituents.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review A, 2003, vol. 68, núm. 5, p. 053205.
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ISSN: 1050-2947
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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