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Titolo:
DENSITY-FUNCTIONAL THEORY OF FREEZING OF QUANTUM LIQUIDS AT ZERO-TEMPERATURE USING EXACT LIQUID-STATE LINEAR-RESPONSE
Autore:
LIKOS CN; MORONI S; SENATORE G;
Indirizzi:
KFA JULICH GMBH,FORSCHUNGSZENTRUM,INST FESTKORPERFORSCH,POSTFACH 1913D-52425 JULICH GERMANY UNIV TRIESTE,DIPARTIMENTO FIS TEOR I-34014 GRIGNANO TRIESTE ITALY IST NAZL FIS MAT I-34014 GRIGNANO TRIESTE ITALY INT CTR THEORET PHYS I-34014 TRIESTE ITALY
Titolo Testata:
Physical review. B, Condensed matter
fascicolo: 14, volume: 55, anno: 1997,
pagine: 8867 - 8880
SICI:
0163-1829(1997)55:14<8867:DTOFOQ>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
MONTE-CARLO CALCULATIONS; HARD-SPHERE LIQUID; ELECTRON-GAS; WIGNER CRYSTALLIZATION; GROUND-STATE; HE-4; NONUNIFORM; FLUIDS; HELIUM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
50
Recensione:
Indirizzi per estratti:
Citazione:
C.N. Likos et al., "DENSITY-FUNCTIONAL THEORY OF FREEZING OF QUANTUM LIQUIDS AT ZERO-TEMPERATURE USING EXACT LIQUID-STATE LINEAR-RESPONSE", Physical review. B, Condensed matter, 55(14), 1997, pp. 8867-8880

Abstract

We apply density-functional theory to study the freezing of superfluid He-4, charged bosons, and charged fermions at zero temperature. We employ accurate quantum Monte Carlo data for the linear-response function in the uniform phase of these systems, a quantity that has different behavior for large values of the wave vector than previously assumed. We find that, as a result of this exact behavior, different approximations in the density-functional theory of freezing that involve linear response, all fail to correctly describe the crystallization in three dimensions, while yielding satisfactory predictions in two dimensions. This demonstrates the shortcomings of the currently popular density-functional approximate theories to describe 3d freezing in the quantum regime. We also investigate the consequences of the exact asymptoticbehavior of response functions on the form of effective interactions and polarization potentials in the electron gas, at small distances.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 19:52:20