The canonical commutation relation in QFT with say one (non-free) scalar real field $\phi$ is $$[\phi(\vec x,t),\dot \phi(\vec y,t)]=i\hbar\delta^{(3)}(\vec x-\vec y).$$
Is this equation satisfied by the bare field or the renormalized one?
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$\begingroup$ The renormalized field. $\endgroup$– PraharCommented Jun 17 at 18:25
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$\begingroup$ @Prahar: Why this is the case? $\endgroup$– MKOCommented Jun 19 at 10:07
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