MANY-BODY THEORY OF ATOMIC DEUTERIUM

被引：7

作者：

GREEFF, CW ^{[1
]}

CLEMENTS, BE ^{[1
]}

TALBOT, EF ^{[1
]}

GLYDE, HR ^{[1
]}

机构：

[1] UNIV DELAWARE,DEPT PHYS,NEWARK,DE 19711

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.43.7595

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Deuterium atoms form a fascinating spin-one Fermi fluid of moderate density. Several properties of this fluid are evaluated using the self-consistent Green-function method of many-body theory. The aim is both to determine the properties and to see how well Green-function methods can be implemented in a moderately dense Fermi liquid. Approximations begin with the self-energy. This is separated into Brueckner-Hartree-Fock terms and correlation or two-hole-one-particle (HHP) terms. We find ground-state energies E in reasonable agreement with Monte Carlo values. While the HHP terms are not so important for E, they lead to a significant enhancement of the effective mass m* at the Fermi surface epsilon-F. The particle-hole interaction is calculated from the self-energy using the conserving Baym-Kadanoff method. This leads to Landau parameters F(O)s that are positive and an F1s that is consistent with m*.

引用

页码：7595 / 7608

页数：14

共 56 条

[51] SINGLE-PARTICLE STATES IN NUCLEAR-MATTER AND IN FINITE NUCLEI [J].