Microscopic study of He2-SF6 trimers

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 characteri...

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Authors: Barletta, P., Fabrocini, A., Kievsky, A., Navarro Faus, Jesús, Polls Martí, Artur
Format: article
Status:Published version
Publication Date:2003
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/9574
Online Access:https://hdl.handle.net/2445/9574
Access Level:Open access
Keyword:Microagregats
Heli líquid
Microscòpia de materials
Gasos rars
Microclusters
Liquid helium
Microscopy of materials
Rare gases
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spelling Microscopic study of He2-SF6 trimersBarletta, P.Fabrocini, A.Kievsky, A.Navarro Faus, JesúsPolls Martí, ArturMicroagregatsHeli líquidMicroscòpia de materialsGasos rarsMicroclustersLiquid heliumMicroscopy of materialsRare gasesThe 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.The American Physical Society2003info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/9574Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevA.68.053205Physical Review A, 2003, vol. 68, núm. 5, p. 053205.http://dx.doi.org/10.1103/PhysRevA.68.053205(c) The American Physical Society, 2003info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/95742026-05-27T06:46:51Z
dc.title.none.fl_str_mv Microscopic study of He2-SF6 trimers
title Microscopic study of He2-SF6 trimers
spellingShingle Microscopic study of He2-SF6 trimers
Barletta, P.
Microagregats
Heli líquid
Microscòpia de materials
Gasos rars
Microclusters
Liquid helium
Microscopy of materials
Rare gases
title_short Microscopic study of He2-SF6 trimers
title_full Microscopic study of He2-SF6 trimers
title_fullStr Microscopic study of He2-SF6 trimers
title_full_unstemmed Microscopic study of He2-SF6 trimers
title_sort Microscopic study of He2-SF6 trimers
dc.creator.none.fl_str_mv Barletta, P.
Fabrocini, A.
Kievsky, A.
Navarro Faus, Jesús
Polls Martí, Artur
author Barletta, P.
author_facet Barletta, P.
Fabrocini, A.
Kievsky, A.
Navarro Faus, Jesús
Polls Martí, Artur
author_role author
author2 Fabrocini, A.
Kievsky, A.
Navarro Faus, Jesús
Polls Martí, Artur
author2_role author
author
author
author
dc.subject.none.fl_str_mv Microagregats
Heli líquid
Microscòpia de materials
Gasos rars
Microclusters
Liquid helium
Microscopy of materials
Rare gases
topic Microagregats
Heli líquid
Microscòpia de materials
Gasos rars
Microclusters
Liquid helium
Microscopy of materials
Rare gases
description 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.
publishDate 2003
dc.date.none.fl_str_mv 2003
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/9574
url https://hdl.handle.net/2445/9574
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevA.68.053205
Physical Review A, 2003, vol. 68, núm. 5, p. 053205.
http://dx.doi.org/10.1103/PhysRevA.68.053205
dc.rights.none.fl_str_mv (c) The American Physical Society, 2003
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) The American Physical Society, 2003
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv The American Physical Society
publisher.none.fl_str_mv The American Physical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869424957406052352
score 15,301603

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