Eliminating the coincidence counter

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SUMMARY

The discussion centers on the implications of omitting the coincidence counter in DCQE (Delayed Choice Quantum Eraser) experiments and its effect on results at D0. Participants explore whether the act of measurement collapses the wave function or if the information must be accessible to a human observer for the interference pattern to be affected. Specifically, they reference the double slit experiment, questioning if destroying the measurement information, even without human observation, alters the resulting interference pattern.

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Fiziqs
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In DCQE, if you leave out the coincidence counter, does it effect the results at D0? Or is it impossible to know?

What I want to know is...do you collapse the wave when you measure the particle...or does that information need to be accessible to a human observer.

Or even simpler...in the double slit experiment, if you measure which slit the particle went through, and then destroy any information about the result, without ever knowing what it was, does the interference pattern disappear?

Thanks
 
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Fiziqs said:
Or even simpler...in the double slit experiment, if you measure which slit the particle went through, and then destroy any information about the result, without ever knowing what it was, does the interference pattern disappear?
Thanks

If which slit information was written by a robot arm onto paper and then the paper burnt, so no observer could read it ever again? hmmmm...
 

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