Variational study of a He-3 impurity and of a vacancy in solid He-4

被引：10

作者：

Pederiva, F

Dalfovo, F

Fantoni, S

Reatto, L

Stringari, S

机构：

[1] INFM,I-38050 POVO,ITALY

[2] SISSA,LAB INTERDISCIPLINARE,I-34014 TRIESTE,ITALY

[3] INFM,I-20100 MILAN,ITALY

[4] UNIV MILAN,DIPARTIMENTO FIS,I-20100 MILAN,ITALY

来源：

PHYSICAL REVIEW B | 1997年 / 55卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.55.3122

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We use the Lekner-Feynman theory together with variational Monte Carlo calculations to estimate the energy of a single He-3 impurity in a He-4 crystal at T=0 K. When applied to the case of a crystal with a vacancy the same method gives an energy for the vacancy comparable with the one obtained with ab initio simulations. The application of the Lekner-Feynman theory to study of the binding of He-3 impurities at the solid-liquid interface is briefly discussed.

引用

页码：3122 / 3127

页数：6

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