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Universal Self Force from an Extended-Object Approach

Amos Ori·Eran Rosenthal
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Abstract

We present a consistent extended-object approach for determining the self force acting on an accelerating charged particle. In this approach one considers an extended charged object of finite size $ε$, and calculates the overall contribution of the mutual electromagnetic forces. Previous implementations of this approach yielded divergent terms $\propto 1/ε$ that could not be cured by mass-renormalization. Here we explain the origin of this problem and fix it. We obtain a consistent, universal, expression for the extended-object self force, which conforms with Dirac's well known formula.

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Amos Ori, Eran Rosenthal. 2002-05-01. Universal Self Force from an Extended-Object Approach. https://doi.org/10.1103/physrevd.68.041701

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