RATE OF CONFINED PHONON EXCITATION IN RECTANGULAR QUANTUM WIRES

被引：0
|
作者：
Le Thi Thu Phuong [1 ]
Tran Cong Phong [1 ]
机构：
[1] Hue Univ, Coll Educ, Dept Phys, 34 Le Loi Str, Hue City, Vietnam
来源：
INTERNATIONAL JOURNAL OF COMPUTATIONAL MATERIALS SCIENCE AND ENGINEERING | 2012年 / 1卷 / 01期
关键词：
Phonon amplification; electron-phonon interaction; quantum wire; quantum kinetic equation;
D O I：
10.1142/S2047684112500029
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present a theory of phonon generation via the Cerenkov effect in rectangular quantum wires (RQWs) based on the quantum kinetic equation for phonon population operator. Analytical expressions for the rate of change of the phonon population and conditions for phonon generation are obtained. Both electrons and phonons are confined. Numerical results for a specific RQW show that the amplitude of the laser field must satisfy additional conditions that are different in comparison with those of the generation of bulk phonons.
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页数：10
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