抛物量子点中弱耦合束缚极化子的声子平均数

The Average Number of Virtual Phonons of the Strong-coupling Bound Polaron in a Parabolic Quantum Dot

采用线性组合算符和幺正变换方法研究了抛物量子点中弱耦合束缚极化子的声子平均数,计算结果表明:抛物量子点中束缚极化子的声子平均数随库仑束缚场和电子-体纵光学声子强度的增加而增加,随有效受限长度的增加而减小.

In this paper,with linear combination operator and unitary transformation methods,the properties of the average number of virtual phonons of the strong-coupling bound polaron in a parabolic quantum dot.The results show that the average number of virtual phonons of the strong-coupling bound polaron decreases with the effective confinement length.Meanwhile,it increases with the Coulomb potential and the electron-LO-phonon coupling strength enhancing.