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Jun 21, 2016 at 21:12 comment added knzhou This is a good question! Of course we know energy is conserved, the real question is what the Poynting vector looks like in the double slit experiment. (Note that it's a purely classical question, you don't need QM for this.)
Jun 21, 2016 at 19:11 history edited Qmechanic CC BY-SA 3.0
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Jun 21, 2016 at 19:09 comment added user12029 Energy is conserved locally in electrodynamics by Poynting's theorem. So no, energy cannot disappear/reappear in other places. Instead, the energy density has only moved into the maxima in the first place!
Jun 21, 2016 at 19:07 answer added anna v timeline score: 3
Jun 21, 2016 at 18:53 history asked Divyansh raka CC BY-SA 3.0