i always have asked myself this question ..Feynmann and others got the nobel prize for quantizaying the electromagnetism..i have read about it and it seems it was a difficult task..but why not try this way .take the lagrangian of electromagnetism and take the hamiltonian to be H=E+B now we now E=-dA/dt and B=rotA so we could quantizy the hamiltonian and get the wave functional F(A) with(adsbygoogle = window.adsbygoogle || []).push({});

HF(A)=EF(A) what is easier...then why use renormaliztion and all that?..in electromagnetism can the Hamiltonian description presented above describe quantum electormagnetism?..then why qed?..

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# A question

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