DCQE - walborn/yoon do it one way only

[San K]

the experiements first do which-way on the s-photon
and then use eraser on the p-photon (after s has been registered on the detector)
and then get interference pattern (via pairing from coincidence counter)

now let’s say we do no-which-way on the s-photon
and then use marker on the p-photon (after s has been registered on the detector)

what, do you predict, we will get?


the walborn paper is here --> http://arxiv.org/abs/quant-ph/0106078

and summary discussion of walborn paper is here --> http://grad.physics.sunysb.edu/~amarch/

the yoon paper is here ---> http://arxiv.org/abs/quant-ph/9903047

 

[DrChinese]

Well, the ordering certainly does not matter.

 

[San K]

Well, the ordering certainly does not matter.

Dr Chinese...your short, precise and clear answers are very good/helpful…..

now taking it further...if with s-photons we do no-which-way then we get interference pattern...
now interference pattern have empty/blank space between them...

so now when we do which-way on p-photon (after the s-photon has registered at the detector)...even if we sub-sample (the s-photon interference pattern)...how can the blank/empty/sparsely-populated "bands" now fill up to show no-interference pattern?

this question is more for Cthuga/spectracat...because I am not sure if you subscribe to the sub-sampling arguments to explain the DCQE...