库仑场中束缚光学极化子的有效质量

Effective Mass of Bound Optical Polarons in a Coulomb Potential

摘要:

研究库仑场中强、弱耦合束缚极化子的性质。采用改进的线性组合符和么正变换方法导出强、弱耦合束缚极化子的振动频率和有效质量。讨论了库仑场对强、弱耦合束缚极化子的振动频率和有效质量的影响。对RbCl和AgCl晶体进行了数值计算。结果表明，束缚极化子的振动频率和有效质量随库仑势的绝对值的增加而增大。

Abstract:

The properties of the strong- and weak-coupling bound optical polaron in a Coulomb field were studied.The vibration frequency and effective mass of strong- and weak-coupling bound polaron was derived by using improved linear combination operator and unitary transformation methods.The inflence of a Coulomb field on the vibration frequency and effective mass of strong- and weak- coupling bound polaron was discussed.As an example,the numerical calculation for RbCl and AgCl crystals has been carried.The results show that the vibration frequency and effective mass of the strong- and weak- coupling bound polaron will increase with increasing the absolute value of the Coulomb potential.