Study of Two-Mode Squeezed Magnetopolarons

被引：0
|
作者：
ZHANG Yan-Min~+ CHENG Ze Department of Physics
机构：
来源：
Communications in Theoretical Physics | 2007年 / 47卷 / 04期
基金：
中国国家自然科学基金;
关键词：
magnetopolarons; squeezed state; electron-phonon interaction; renormalized mass;
D O I：
暂无
中图分类号：
O471.3 [极化与激子理论];
学科分类号：
070205 ; 080501 ; 0809 ; 080903 ;
摘要：
In this paper,we conduct an investigation into two-dimensional squeezed magnetopolarons.The Hamilto-nian of magnetopolarons is dealt with two-mode squeezed states transformation,which is based on the Lee-Low-Pinesand Huybrechts(LLP-H)canonical transformations.This method makes it possible to take account of the linear terms,bilinear ones of phonon operators,and the correlation between two longitudinal optical(LO)phonon modes.The en-ergies of the ground state and excited states are evaluated by variational approach,and accurate results are obtained.Furthermore,the renormalized cyclotron masses for some possible transitions are discussed in detail.
引用
收藏
页码：747 / 751
页数：5
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