Comment on “Experimental Nonlocality Proof of Quantum Teleportation and Entanglement Swapping”


In a recent letter, Jennewein et al. [1] reported an experiment demonstrating entanglement swapping among two pairs (0,1 and 2,3) of down-converted photons. They accomplished this by performing a Bell measurement on photons 1 and 2, and they verified the effect with regular polarization measurements on photons 0 and 3. By selecting data from runs in which 1… (More)