The density-temperature range of exchange-correlation exciton existence by the fermionic path integral Monte Carlo method

被引：1

作者：

Filinov, V. S. ^{[1
]}

Levashov, P. R. ^{[1
,2
]}

Larkin, A. S. ^{[1
]}

机构：

[1] Russian Acad Sci, Joint Inst High Temp, Izhorskaya 13 Bldg 2, Moscow 125412, Russia

[2] Moscow Inst Phys & Technol, 9 Inst Skiy per, Dolgoprudnyi 141701, Moscow Region, Russia

来源：

PHYSICS OF PLASMAS | 2022年 / 29卷 / 05期

基金：

俄罗斯科学基金会;

关键词：

Compendex;

D O I：

10.1063/5.0089836

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A recently developed fermionic path integral Monte Carlo approach [Filinov et al., Phys. Rev. E 102, 033203 (2020) and Filinov et al., J. Phys. A 55, 035001 (2021)] has been applied for the estimation of the density-temperature range of exchange-correlation exciton existence in a strongly coupled degenerate uniform electron gas. The approach allows us to reduce the "fermionic sign problem" taking into account the interference effects of the Coulomb and exchange interaction of electrons in the basic Monte Carlo cell and its periodic images. Our results for radial distribution functions demonstrate the formation and decay of a short-range quantum ordering of electrons associated with exchange-correlation excitons in the literature. Such excitons have never been observed earlier in standard path integral Monte Carlo simulations.

引用

页数：6