Undergrad Effect of inserting an analyzer loop in the EPR experiment

[kurt101]

TL;DR

Does inserting an analyzer loop in the EPR experiment with photons affect the non-local correlation in this experiment?

Given an EPR experiment such as the Alain Aspect 1982 test of non-locality using photons; if you modified the experiment so that the entangled photons first go through a analyzer loop (polarizer + inverse polarizer) before going to the polarizers in the experiment would you still see a non-local correlation between the entangled photons in this experiment?

A loop analyzer is a polarizer and its inverse polarizer that does not change the polarization as show in the following diagram:

 

[DrChinese]

According to this analysis, it would:

http://www2.optics.rochester.edu/~stroud/cqi/rochester/UR19.pdf

I haven't seen experimental realization of this though.

 

[kurt101]

According to this analysis, it would:

"It would" what? I did a first read through the thought experiment you posted and my understanding is that an analyzer loop that looks like:

has no effect on the outcome and you still get the Bell violation whether it is there or not. Am I misunderstanding?

Thanks

 

[DrChinese]

Sorry, I wasn't clear: "Would you still see a non-local correlation between the entangled photons in this experiment?"

Yes, you would. The only issue is that I am not aware of an experimental demonstration of this. But maybe someone else knows... and I would love to see that.