经典电动力学的适用界限

Adaptable limits of the classical electrodynamics

通过计算电子作为点粒子时的固有能以及电子在外电场中运动时的自作用力，给出了经典电动力学在尺度、波长及场强３个方面存在的界限，指出这些界限的存在源于经典电动力学的内部矛盾．对修改经典电动力学的有关理论进行了讨论．

The intrinsic energy of a electron as piont model and the force put on the electron moving in an external electrical field by itself are calculated. The limits of the classical electrodynamics in scale, wavelength and field intensity are given. It is pointed out that the limits originates from it's internal contradictory and some theoretical improving on the classical electrodynamics is discussed.