I suppose we have 4 conditions to examine :
{ single particle | beam } * { with eraser | without eraser }
I suppose we have to get the same results that those that are observed behind the slits in the classical version of the experiment, that is :
- particle with eraser : even distribution, no interference fringes.
- particle without eraser : interference fringes.
- beam with eraser : even distribution, no interference fringes.
- beam without eraser : interference fringes.
The last one maybe would be a significant result for QT. So, has this been done yet ?
Alternative formulation of the question : was the double-slit experiment ever executed with slits cut in a detection screen, and what were the results ?
I did read this question :
Double Slit Experiment: What would happen if the slit material was a detector?
...but I think it does not really treat the same subject matter.