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2 Journal of Technical Physics

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Quantum information transfer without classical channel: a proposed polarization-entanglement test

Szczepański A.

Journal of Technical Physics

2005

Vol. 46, no 3

195-198

A quantum information transfer protocol in bipartite systems consisting of biphotons from parametric down-conversion without classical channel is shown to be a readily feasible modification of performed correlation experiments.

Quantum information transfer without classical channel : a proposed energy-correlation experiment

Szczepański A.

Journal of Technical Physics

2004

Vol. 45, no 2

173-177

Energy entangled photon pairs from parametric down conversion are the considered bipartite quantum system. It is argued that photocount of the energy-analysed photon in one subsystem does not commute with measurements of higher order correlation functions (interferences) in the second subsystem. Both the subsystems are mutually spatially disjoint. Very short measurement sampling times needed to perform the discussed experiment make it rather "gedanken" than real.