Tuesday, October 23, 2012

1210.5646 (Reinhold A. Bertlmann et al.)

Time-ordering Dependence of Measurements in Teleportation    [PDF]

Reinhold A. Bertlmann, Heide Narnhofer, Walter Thirring
The phenomenon of "delayed-choice entanglement swapping" as it was realized in a recent experiment we trace back to the commutativity of the projection operators which are involved in the corresponding measurement process. We also propose an experimental set-up which depends on the order of successive measurements corresponding to noncommutative projection operators. In this case entanglement swapping is used to teleport a quantum state from Alice to Bob, where Bob has now the possibility to examine the noncommutativity within the quantum history.
View original: http://arxiv.org/abs/1210.5646

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