无质量经典电动力学
Massless classical electrodynamics
摘要：
在经典电磁场的直接作用形式下，给出了无自相互作用的经典无质量裸电荷在外场作用下的运动方程。这个方程允许超光速和时间反转，也就是实现了斯图克伯格-费曼的观点，即电子和正电子是同一轨道的不同部分。我们给出了一个特殊的解决方案，一个身体的问题，并简要讨论了两体问题的一些方面。有一些关于这一努力的历史背景的讨论，包括直接作用和吸收体理论，以及一些关于无质量裸电荷如何获得质量的猜测，以及这些发现如何影响奇异自作用的问题。
英文摘要：
In the direct action form of classical EM we give the equation of motion for a classical massless bare charge without self-interaction in the presence of an external field. That equation permits superluminal speeds and time-reversals, and so is a realization of the Stueckelberg-Feynman view of electrons and positrons as different segments of a single trajectory. We give a particular solution to a one body problem, and briefly discuss some aspects of the two-body problem. There is some discussion of the historical context of this effort, including the direct action and absorber theories, and some speculation on how the massless bare charge may acquire mass, and how these findings impact the problem of singular self-action.
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