Excited states of <sup>4</sup>He droplets

We study low-lying excited states of <sup>4</sup>He clusters up to a cluster size of 40 atoms in a variational framework. The ansatz wave function combines two- and three-body correlations, coming from a translationally invariant configuration interaction description, and Jastrow-type sh...

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Detalles Bibliográficos
Autores principales: Guardiola, R., Navarro, J., Portesi, Mariela Adelina
Formato: Articulo
Lenguaje:Inglés
Publicado: 2001
Materias:
Ciencias Exactas
Física
liquid and solid helium
ground state and elementary excitations
atomic and molecular clusters
two and three body correlations
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/104412
http://hdl.handle.net/11336/98628
https://journals.aps.org/prb/abstract/10.1103/PhysRevB.63.224519
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-104412
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
liquid and solid helium
ground state and elementary excitations
atomic and molecular clusters
two and three body correlations
spellingShingle Ciencias Exactas
Física
liquid and solid helium
ground state and elementary excitations
atomic and molecular clusters
two and three body correlations
Guardiola, R.
Navarro, J.
Portesi, Mariela Adelina
Excited states of <sup>4</sup>He droplets
topic_facet Ciencias Exactas
Física
liquid and solid helium
ground state and elementary excitations
atomic and molecular clusters
two and three body correlations
description We study low-lying excited states of <sup>4</sup>He clusters up to a cluster size of 40 atoms in a variational framework. The ansatz wave function combines two- and three-body correlations, coming from a translationally invariant configuration interaction description, and Jastrow-type short-range correlation. We have previously used this scheme to determine the ground-state energies of <sup>4</sup>He and <sup>3</sup>He clusters. Here we present an extension of this ansatz wave function having a good quantum angular momentum L. The variational procedure is applied independently to the cases with L = 0,2,4, and upper bounds for the corresponding energies are thus obtained. Moreover, centroid energies for L excitations are calculated through the use of sum rules. A comparison with previous calculations is also made.
format Articulo
Articulo
author Guardiola, R.
Navarro, J.
Portesi, Mariela Adelina
author_facet Guardiola, R.
Navarro, J.
Portesi, Mariela Adelina
author_sort Guardiola, R.
title Excited states of <sup>4</sup>He droplets
title_short Excited states of <sup>4</sup>He droplets
title_full Excited states of <sup>4</sup>He droplets
title_fullStr Excited states of <sup>4</sup>He droplets
title_full_unstemmed Excited states of <sup>4</sup>He droplets
title_sort excited states of <sup>4</sup>he droplets
publishDate 2001
url http://sedici.unlp.edu.ar/handle/10915/104412
http://hdl.handle.net/11336/98628
https://journals.aps.org/prb/abstract/10.1103/PhysRevB.63.224519
work_keys_str_mv AT guardiolar excitedstatesofsup4suphedroplets
AT navarroj excitedstatesofsup4suphedroplets
AT portesimarielaadelina excitedstatesofsup4suphedroplets
bdutipo_str Repositorios
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