Experimental high fidelity six-photon entangled state for telecloning protocols
Magnus Rådmark, Marek Żukowski, Mohamed Bourennane · New Journal of Physics · 2009
We experimentally generate and characterize a six-photon polarization entangled state, which is usually called 'Ψ 6 + '. This is realized with a filtering procedure of triple emissions of entangled photon pairs from a single source, which does not use any interferometric overlaps. The setup is very stable and we observe the six-photon state with high fidelity. The observed state can be used for demonstrations of telecloning and secret sharing protocols.