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Titolo:
Equation of state of solid He-3
Autore:
Moroni, S; Pederiva, F; Fantoni, S; Boninsegni, M;
Indirizzi:
Univ Rome La Sapienza, INFM, Rome, Italy Univ Rome La Sapienza Rome Italy iv Rome La Sapienza, INFM, Rome, Italy Univ Trent, Dipartimento Fis, I-38050 Trent, Italy Univ Trent Trent Italy I-38050 t, Dipartimento Fis, I-38050 Trent, Italy Int Sch Adv Studies, Trieste, Italy Int Sch Adv Studies Trieste ItalyInt Sch Adv Studies, Trieste, Italy San Diego State Univ, Dept Phys, San Diego, CA 92182 USA San Diego State Univ San Diego CA USA 92182 Phys, San Diego, CA 92182 USA
Titolo Testata:
PHYSICAL REVIEW LETTERS
fascicolo: 12, volume: 84, anno: 2000,
pagine: 2650 - 2653
SICI:
0031-9007(20000320)84:12<2650:EOSOSH>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTEGRAL MONTE-CARLO; SHADOW WAVE-FUNCTION; GROUND-STATE; HELIUM; LIQUID;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Moroni, S Univ Rome La Sapienza, INFM, Piazzale Aldo Moro 5, Rome, Italy Univ Rome La Sapienza Piazzale Aldo Moro 5 Rome Italy e, Italy
Citazione:
S. Moroni et al., "Equation of state of solid He-3", PHYS REV L, 84(12), 2000, pp. 2650-2653

Abstract

We present results of diffusion Monte Carlo calculations for the bcc and hcp phases of solid He-3, using a recent ab initio interatomic potential, including two- and three-body terms. This potential is found to yield an equation of state fur condensed He-4 in excellent agreement with experiment, ina wide density range. For He-3, we find a systematic discrepancy, worth 0.7 K, between our computed equation of state and a commonly accepted experimental one. We attribute such a discrepancy to an importance choice of reference energy in the determination of the experimental equation of state.

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Documento generato il 05/12/20 alle ore 20:06:18