Elementary excitations in the hybrid Bose-Fermi system induced by circularly polarized light in a two-dimensional gas of charge carriers with different masses

被引：0

作者：

Kovalev, V. M. ^{[1
,2
]}

Boev, M., V ^{[1
]}

Kibis, O., V ^{[1
]}

机构：

[1] Novosibirsk State Tech Univ, Dept Appl & Theoret Phys, Karl Marx Ave 20, Novosibirsk 630073, Russia

[2] MIPT Univ, Abrikosov Ctr Theoret Phys, Dolgoprudnyi 141701, Russia

来源：

PHYSICAL REVIEW B | 2023年 / 108卷 / 15期

基金：

俄罗斯科学基金会;

关键词：

Compendex;

D O I：

10.1103/PhysRevB.108.155140

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We developed a theory describing elementary excitations in the Bose-Fermi system induced by circularly polarized light in a two-dimensional (2D) gas of charge carriers with different masses. In such a hybrid system, the Fermi subsystem is a degenerate Fermi gas, whereas the Bose subsystem is a condensate of the light-induced composite bosons consisting of two fermions (electrons or holes) with different effective masses. The interaction of the single-particle excitations and the collective excitations (plasmons) in the Fermi subsystem with the Bogoliubov collective modes (bogolons) in the Bose subsystem is analyzed. The renormalization and damping (lifetime) of the excitations are calculated, and the possibility of their experimental observation is discussed. The developed theory can be applied to describe 2D condensed-matter structures containing charge carriers with different effective masses, including transition metal dichalcogenide monolayers and semiconductor quantum wells.

引用

页数：11

共 4 条

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