The physical essentials of the process that the free electron in empty-lattice model becomes Bloch's electron in crystal under the action of perturbing periodic potential are revealed by analysis from the point of view of wave theory. 从波动学的角度分析空晶格模型中的自由电子在周期性晶体势微扰作用下转变为晶体中Bloch电子的过程,揭示出了这一过程的物理实质。
The solution for perturbing quatity and perturbing potential function is easy to obtain because the problem is linear homogeneous. 由于问题是齐次线性的,容易求得扰动势函数和扰动量的解。