Thinking about DSE I am wondering whether there is not a sort of influence from one slit to the other. At the time the photon is at the slits its further fate should be predetermined, because this is the only source of influence for it. Copenhagen interpretation (CI) regards the photon as a probability smeared in space but also can not avoid the notion that the photon interacts with the slit. The interference pattern clearly is different with one slit than with two. So the presence of second slit changes the fate of the photon. I am not sure if anyone has investigated the influence of one slit on the other.

So I propose to split the double slit in two so to prevent any influence from one slit  to the other.  In fact I propose to have instead of one double slit – two single slits apart at a distance of less than a half length. Maybe it is easiest to use a cm wave source. The space between the slits (in front of it) is blocked by some bar in order to avoid radiation to pass between them.  Here is the plot.(DSE plot.doc)

I am not sure what QM predicts in the case. From side it must give the usual double slit interference pattern as the configuration is clearly DSE setup. The (probability) wave goes tru both slits and then interferes on the screen.

But from point view of interaction the photon interacts with one slit (not two) and there must be no interference. I think the experiment is worth doing if not already conducted somewhere. As far as I know I have not seen such kind of DSE. If someone has seen let me know.

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