Let me rephrase. Modify the experiment so the experimenter decides whether or not to destroy the which-path information.
Now, an interference pattern will be detected before the experimenter chooses whether or not to destroy the which-path information. This means someone observing the...
It seems to me that this experiment could be used to communicate faster than the speed of light.
Maybe this shows not only the non-local mechanisms through space at work but non-local mechanisms through time.
Does this make any sense or am I talking gibberish? :confused:
Simple Question?
I apologize if my terminology is wrong.
What is the result if the signal photon hits the screen before a choice is made about whether or not to measure the idler photons to determine the path? Two bands or an interference pattern.
If the result depends on whether or not...