What are the radiation and non-radiation terms in the field

  • #1
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What is the radiation and non-radiation terms in the equation B for a moving charged particle. How can I express the result in a tensor form?

Thanks!
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  • #2
pervect
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Good question. If you want to know the energy flows, you can compute the stress-energy tensor and the Poynting vector as in https://en.wikipedia.org/w/index.ph...26693874#Electromagnetic_stress–energy_tensor

That will describe the distribution (stress-energy tensor ##T^{ab}##) or flow (Poynting vector , ##S^a = T^{ab} u_b##), ##u_b## being the 4-velocity of the observer ).

I don't know how to separate out the radiation part, alas.
 

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