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http://hdl.handle.net/2445/10460
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DC Field | Value | Language |
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dc.contributor.author | Boronat Medico, Jordi | cat |
dc.contributor.author | Polls Martí, Artur | cat |
dc.contributor.author | Fabrocini, A. | cat |
dc.date.accessioned | 2009-12-23T12:31:26Z | - |
dc.date.available | 2009-12-23T12:31:26Z | - |
dc.date.issued | 1997 | cat |
dc.identifier.issn | 0163-1829 | cat |
dc.identifier.uri | http://hdl.handle.net/2445/10460 | - |
dc.description.abstract | We present variational calculations of the one-body density matrices and momentum distributions for 3 H e − 4 He mixtures in the zero-temperature limit, in the framework of the correlated basis functions theory. The ground-state wave function contains two- and three-body correlations and the matrix elements are computed by (Fermi) hypernetted chain techniques. The dependence on the 3 He concentration ( x 3 ) of the 4 He condensate fraction ( n ( 4 ) 0 ) and of the 3 He pole strength ( Z F ) is studied along the P = 0 isobar. At low 3 He concentrations, the computed 4 He condensate fraction is not significantly affected by the 3 He statistics. Despite the low x 3 values, Z F is found to be quite smaller than that of the corresponding pure 3 He because of the strong 3 H e − 4 He correlations and of the overall, large total density ρ. A small increase of n ( 4 ) 0 along x 3 is found, which is mainly due to the decrease of ρ with respect to the pure- 4 He phase. | - |
dc.format.extent | 11 p. | cat |
dc.format.mimetype | application/pdf | eng |
dc.language.iso | eng | eng |
dc.publisher | The American Physical Society | cat |
dc.relation.isformatof | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.56.11854 | cat |
dc.relation.ispartof | Physical Review B, 1997, vol. 56, núm. 18, p. 11854-11864 | cat |
dc.relation.uri | http://dx.doi.org/10.1103/PhysRevB.56.11854 | - |
dc.rights | (c) The American Physical Society, 1997 | cat |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Termoquímica | cat |
dc.subject.classification | Heli líquid | cat |
dc.subject.classification | Superfluïdesa | cat |
dc.subject.other | Thermochemistry | eng |
dc.subject.other | Liquid helium | eng |
dc.subject.other | Superfluidity | eng |
dc.title | Momentum distribution in 3He-4He liquid mixtures | eng |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 128823 | cat |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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128823.pdf | 209.53 kB | Adobe PDF | View/Open |
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