Dispersion Theory of Polaron in a Parabolic Quantum Dot at Finite Temperatures

By using the dispersion theory instead of the Frohlich Hamiltonian, the polaron energy in a quantum aot with a parabolic confinement potential is investigated at finite temperatures. It is found that the self-trapping energy of the polaron decreases with the increasing temperature, and the temperatu...

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Published inCommunications in theoretical physics Vol. 55; no. 2; pp. 345 - 348
Main Author 孙尔林 冯东海 贾天卿 周侃 孙真荣
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.02.2011
Subjects
AOT
Confinement
Dispersions
Energy use
Mathematical analysis
Polarons
Quantum dots
Theoretical physics
哈密顿
抛物量子点
有限温度
极化子
温度效应
能量色散
自陷能
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Summary:By using the dispersion theory instead of the Frohlich Hamiltonian, the polaron energy in a quantum aot with a parabolic confinement potential is investigated at finite temperatures. It is found that the self-trapping energy of the polaron decreases with the increasing temperature, and the temperature effect is more obvious in quantum dots with weaker confinement.
Bibliography:11-2592/O3
semiconductors, quantum dots, electron-phonon interactions
O413.3
O471.1
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0253-6102
DOI:10.1088/0253-6102/55/2/26