Hello. I've been reading an interesting article by a pair of smart fellows...(adsbygoogle = window.adsbygoogle || []).push({});

http://rmp.aps.org/pdf/RMP/v21/i3/p425_1

J. A. Wheeler, R. P. Feynman. "Classical Electrodynamics in Terms of Direct Interparticle Action". Reviews of Modern Physics. Volume 21. Number 3. 1949.

I haven't actually taken Quantum Field Theory myself, but I've been trying to wrap my head around the idea of Retarded and Advanced Potentials. From what I've been able to piece together... a retarded potential is one which propagates at a finite speed. An advanced potential is one that propagates instantaneously?! Do I have these definitions correct?

This article may be out of date... but it's interesting to hear his (Wheeler's) voice, the way he thinks...

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# Absorber Theory, Retarded and Advanced Potentials

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