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How to find the Hamiltonian density for electromagnetic field? And, how to solve the stress tensor for electromagnetic field?

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  • $\begingroup$ Solve = calculate explicitly? $\endgroup$ – Hydro Guy Oct 6 '14 at 22:00
  • $\begingroup$ yes, exactly :) $\endgroup$ – Mohammad Sami Kh Oct 6 '14 at 22:15
  • $\begingroup$ Use Noether's theorem. This leads to a non-symmetric stress tensor and there is a standard procedure to symmetrise it. Standard text book material - see Landau and Lifshitz "Classical Theory of Fields". Lots of fun if you are doing it for the first time. $\endgroup$ – suresh Oct 7 '14 at 2:20
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Pages 39 and 40 of this paper should provide a partial answer. You may need to read pages 35-39 first to understand the procedure.

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