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Titolo:
OPTIMIZED SHADOW-WAVE FUNCTIONS FOR LIQUID AND SOLID HE-4
Autore:
MORONI S; REATTO L; FANTONI S;
Indirizzi:
INT CTR THEORET PHYS,STRADA COSTIERA 11 I-34014 TRIESTE ITALY UNIV MILAN,DIPARTIMENTO FIS I-20133 MILAN ITALY UNIV MILAN,INFM I-20133 MILAN ITALY SCUOLA INT SUPER STUDI AVANZATI I-34014 TRIESTE ITALY
Titolo Testata:
Czechoslovak journal of Physics
, volume: 46, anno: 1996, supplemento:, 1
pagine: 281 - 282
SICI:
0011-4626(1996)46:<281:OSFFLA>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
5
Recensione:
Indirizzi per estratti:
Citazione:
S. Moroni et al., "OPTIMIZED SHADOW-WAVE FUNCTIONS FOR LIQUID AND SOLID HE-4", Czechoslovak journal of Physics, 46, 1996, pp. 281-282

Abstract

An efficient optimization scheme has been applied to shadow nave functions for tile ground state of liquid and solid He-4. Results improve on previous variational energies in both phases. In the liquid, the gain over a wave function with only pair and triplet correlations increases with density, pointing to tile increasing importance of higher order correlations. Remarkably, the discrepancy with experimental data isnearly constant with density, yielding a very good equation of state. The estimate of the coexistence region is also satisfactory. Optimized shadow wave functions hold promise of an accurate variational description of inhomogeneous Helium systems.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 14:15:31