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Titolo:
AUXILIARY-FIELD QUANTUM MONTE-CARLO CALCULATIONS FOR SYSTEMS WITH LONG-RANGE REPULSIVE INTERACTIONS
Autore:
SILVESTRELLI PL; BARONI S; CAR R;
Indirizzi:
SCUOLA NORMALE SUPER PISA,IST NAZL FIS MATERIA,FORUM FIS TEOR,PIAZZA CAVALIERI 7 I-56100 PISA ITALY SCUOLA INT SUPER STUDI AVANZATI I-34014 TRIESTE ITALY PHB ECUBLENS,INST ROMAN RECH NUMER PHYS MAT CH-1015 LAUSANNE SWITZERLAND
Titolo Testata:
Physical review letters
fascicolo: 8, volume: 71, anno: 1993,
pagine: 1148 - 1151
SICI:
0031-9007(1993)71:8<1148:AQMCFS>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
FERMION SYSTEMS; SIMULATION; TRANSFORMATION; STATES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
19
Recensione:
Indirizzi per estratti:
Citazione:
P.L. Silvestrelli et al., "AUXILIARY-FIELD QUANTUM MONTE-CARLO CALCULATIONS FOR SYSTEMS WITH LONG-RANGE REPULSIVE INTERACTIONS", Physical review letters, 71(8), 1993, pp. 1148-1151

Abstract

We report on the first successful attempt to apply the auxiliary-field quantum Monte Carlo technique to the calculation of ground-state properties of systems of many electrons interacting via a Coulomb potential. We have been able to substantially reduce the huge statistical fluctuations arising from the repulsive, long-range character of the interactions, which had so far hindered the application of this method to realistic Hamiltonians for atoms, molecules, and solids. Our techniqueis demonstrated with calculations of ground-state properties of the simplest molecular and solid-state systems, i.e., the H-2 molecule and the homogeneous electron gas.

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Documento generato il 14/07/20 alle ore 09:47:21