>>13047020 >>13047117>information about the path is stored on some pc but then someone right click->delete it, will the wave function be restored?No, look at the pic of DCQE
>>13045811 as an example.
The experiment itself has a half-silvered mirror or polarize-filter or non-linear-crystal or "whatever" else to "MARK" the electron/photon.
"Mark"ing the photon/electron in this case means introducing components that "force" the photon/electron to "make up its mind & decide" which slit to pass thru.
I used the word "information" instead of "data" for this exact reason.
Deleting the Data is irrelevant because components "forced" the photon/electron to "decide";
so deleting pc Data does not mean the photon/electron didn't get forced to "choose" only one of the two slit options.
THE PHOTON/ELECTRON KNOWS
The which-way information is erased, or rather obfuscated by the quantum-eraser so now the photon/electron itself "could" of originally traveled thru either slot in the first place.
Its the "memory" belonging to the photon/electron itself that is being obfuscated/erased, not the observers.
>But how would you prove this without looking? I mean isn't that just the Schrödinger Cat thought experiment in a different form? And we all know how that ended, don't we?Carry out this above DCQE using a laser so you can physically "see" the pattern formed on the screen in real time.
The outcome still works according to above rules. YOU participating in this experiment along with the photon/electron is irrelevant.
Its not your observations doing anything, but the photons/electrons.
