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Titolo:
OPTIMIZATION OF 3-BODY CORRELATIONS IN LIQUID-HELIUM
Autore:
MORONI S; FANTONI S; SENATORE G;
Indirizzi:
SCUOLA NORMALE SUPER PISA,LAB FORUM,IST NAZL FIS MAT,PIAZZA CAVALIERI7 I-56126 PISA ITALY SISSA,INTERDISCIPLINARY LAB I-34014 TRIESTE ITALY UNIV TRIESTE,DIPARTIMENTO FIS TEOR I-34014 TRIESTE ITALY
Titolo Testata:
Europhysics letters
fascicolo: 2, volume: 30, anno: 1995,
pagine: 93 - 98
SICI:
0295-5075(1995)30:2<93:OO3CIL>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
MONTE-CARLO CALCULATIONS; 3-BODY CORRELATIONS; ELEMENTARY DIAGRAMS; WAVE-FUNCTIONS; GROUND-STATE; FERMION; MATTER; HE-4;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
33
Recensione:
Indirizzi per estratti:
Citazione:
S. Moroni et al., "OPTIMIZATION OF 3-BODY CORRELATIONS IN LIQUID-HELIUM", Europhysics letters, 30(2), 1995, pp. 93-98

Abstract

We propose a scheme for triplet optimization in the variational MonteCarlo treatment of quantum liquids. Application to He-4 and He-3 reveals that the lowering of the ground- state energy with respect to previous calculations using fixed parametrized triplets is dominated by the l=1 term. The remaining appreciable discrepancies with the results of Diffusion Monte Carlo point to the importance of higher-order pseudopotentials, especially at high densities.

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Documento generato il 04/12/20 alle ore 12:15:00