Zeilinger's prose can be a bit misleading at times, but note the axis
on Fig 4 of Zeilinger is in units of "Conditional counts", i.e. this
is definitely from the "coincidence logic" of Fig 3 as that is the
only place where conditional counts can be stored. Reading the caption
carefully he says "The counts are conditioned on registration of the
second photon behind its double slit". So even though his axis label
says "at D1", this could be misleading because a result is only stored
*on condition* that D2 also records a photon. It is a *joint*
probability between D1 AND D2. Which can only be accumulated at
slower-than-light rates.
BR
.
|
