标题： 经典电动力学中的因果关系与自洽性 显示英文标题

标题： Causality and Self-consistency in Classical Electrodynamics

摘要： 我们对经典电动力学的旧不一致之处以及一些解决这些问题的新想法进行了教学性综述。电子运动方程的问题以及其自场能量张量的不可积奇点是众所周知的。我们表明，这些问题是由于忽略了在电荷世界线之外为零但在其世界线上给出非零贡献的项所致。电子自场能量张量在不使用任何种类的重整化的情况下是可积的；当正确考虑其含义时，电子运动方程中不存在因果性破坏和与能量守恒的冲突。 显示英文摘要

摘要： We present a pedagogical review of old inconsistencies of Classical Electrodynamics and of some new ideas that solve them. Problems with the electron equation of motion and with the non-integrable singularity of its self-field energy tensor are well known. They are consequences, we show, of neglecting terms that are null off the charge world-line but that give a non null contribution on its world-line. The electron self-field energy tensor is integrable without the use of any kind of renormalization; there is no causality violation and no conflict with energy conservation in the electron equation of motion, when its meaning is properly considered.