Static Self-Energy and Effective Mass of the Homogeneous Electron Gas from Quantum Monte Carlo Calculations

被引：0

作者：

Holzmann, Markus ^{[1
]}

Calcavecchia, Francesco ^{[1
]}

Ceperley, David M. ^{[2
]}

Olevano, Valerio ^{[3
]}

机构：

[1] Univ Grenoble Alpes, CNRS, LPMMC, F-38000 Grenoble, France

[2] Univ Illinois, Urbana, IL 61801 USA

[3] CNRS, Inst Neel, F-38042 Grenoble, France

来源：

PHYSICAL REVIEW LETTERS | 2023年 / 131卷 / 18期

关键词：

EQUILIBRIUM PROPERTIES; FERMI LIQUIDS; LANDAU THEORY; DERIVATION;

D O I：

10.1103/PhysRevLett.131.186501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discuss the methodology of quantum Monte Carlo calculations of the effective mass based on the static self-energy Sigma(k, 0). We then use variational Monte Carlo calculations of Sigma(k, 0) of the homogeneous electron gas at various densities to obtain results very close to perturbative G(0)W(0) calculations for values of the density parameter 1 <= r(s) <= 10. The obtained values for the effective mass are close to diagrammatic Monte Carlo results and disagree with previous quantum Monte Carlo calculations based on a heuristic mapping of excitation energies to those of an ideal gas.

引用

页数：6

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