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采用改进的线性组合算符和幺正变换方法研究了库仑场对抛物量子线中强耦合极化子的性质的影响.计算了抛物量子线中强耦合束缚极化子的基态能量、振动频率和声子平均数.讨论了这些量对库仑束缚势和约束强度的依赖关系.数值计算结果表明:量子线中强耦合束缚极化子的基态能量随库仑束缚势的增加而减少,随约束强度的增加而增大;振动频率和电子周围的光学声子平均数均随库仑束缚势的增加而增加.
The effect of Coulomb field on the properties of the strong coupling polaron in the parabolic quantum line is studied by using the improved linear combination operator and the unitary transformation method. The ground state energy, the vibrational frequency and The phonon average is discussed.The dependence of these quantities on Coulomb bondage and confinement strength is discussed.The numerical results show that the ground state energies of the strong coupling bound polaron in the quantum line decrease with the increase of Coulomb bondage, Increases and increases; the vibration frequency and the average number of optical phonons around the electrons increase with the increase of the Coulomb bondage.