非对称量子点中极化子有效质量的温度依赖性

2009 Conference on Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics Pub Date : 2009-10-30 DOI:10.1109/CLEOPR.2009.5292608

Eerdunchaolu, W. Xin

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摘要

采用改进的Tokuda线性组合算子和Lee-Low-Pines (LLP)变分方法研究了温度对非对称量子点中弱耦合极化子有效质量的影响。结果表明，弱耦合极化子的有效质量m *仅与温度参数γ和电子-声子耦合强度α有关，而与量子点的约束强度ω1 (ω2)无关。

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Temperature dependence of the effective mass of the polaron in an asymmetry quantum dot

The influences of the temperature on the effective mass of the weak-coupling polaron in an asymmetry quantum dot are studied by using the Tokuda's improved linear-combination operator and the Lee-Low-Pines (LLP) variational method. The results indicate that the effective mass m^∗ of the weak-coupling polaron is only related to the temperature parameterγ and the electron-phonon coupling strength α, but it is independent of the confinement strengthω1 (ω2) of the quantum dot.

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2009 Conference on Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics

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