Abstract

We propose a linear optical protocol to generate Greenberger–Horne–Zeilinger (GHZ) state of N distant photons with the certain success probability. The proposed setup involves simple linear optical elements, N pairs of the two-photon polarization entangled states, and the conventional photon detectors that only distinguish the vacuum and nonvacuum Fock number states. This makes the protocol more realizable in experiments.

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