A nearly deterministic scheme for generation of multiphoton GHZ states with weak cross-Kerr nonlinearity
Yi Wang, Liu Ye, Bao‐Long Fang · Chinese Physics B · 2011
We propose a scheme to generate polarization-entangled multiphoton Greenberger-Horne-Zeilinger (GHZ) states based on weak cross-Kerr nonlinearity and subsequent homodyne measurement. It can also be generalized to produce maximally N -qubit entangled states. The success probabilities of our schemes are almost equal to 1.