zzkt + time-like   1

Experimental delayed-choice entanglement swapping
Using four photons, we can actively delay the choice of measurement-implemented via a high-speed tunable bipartite state analyzer and a quantum random number generator-on two of the photons into the time-like future of the registration of the other two photons. This effectively projects the two already registered photons onto one definite of two mutually exclusive quantum states in which either the photons are entangled (quantum correlations) or separable (classical correlations). This can also be viewed as "quantum steering into the past".
retrocausality  time-like  quantum  physics  entanglement  arxiv 
april 2012 by zzkt

bundles : time

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