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中文摘要：
采用线性组合算符和幺正变换方法研究了非对称量子点中强、弱耦合极化子的性质，导出了非对称量子点中强、弱耦合极化子的基态能量和基态结合能随量子点的横向、纵向有效受限长度，电子-声子耦合强度的变化关系。通过数值计算，结果表明，量子点中强、弱耦合极化子的基态能量和基态结合能随量子点的横向、纵向有效受限长度的减小而迅速增大。
英文摘要：
Some properties of the strong- and weak-coupling polaron in an asymmetry quantum dot are studied by the linear combination operator and unitary transformation methods. The ground state energy and the ground state binding energy of the polaron as a function of the transverse and longitudinal effective confinement length of the quantum dot and the electron-phonon coupling strength are obtained. It is shown that the ground state energy and the ground state binding energy of the strong- and weak-coupling polaron will increase strongly with the decreasing of the transverse and longitudinal effective confinement length of the quantum dot.
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