Experimental construction of optical multiqubit cluster states from Bell states

  title={Experimental construction of optical multiqubit cluster states from Bell states},
  author={An-ning Zhang and Chaoyang Lu and Xiaoqi Zhou and Yu-Ao Chen and Zhi Zhao and Tao Yang and Jian-Wei Pan},
  journal={Physical Review A},
Cluster states serve as the central physical resource for one-way quantum computing. We here present an experimental demonstration of the efficient cluster-state construction scheme proposed by Browne and Rudolph. In our experiment, three-photon cluster states with high purity are created from two Bell states via a qubit ``fusion'' operation, showing a strong violation of a three-particle Mermin inequality of $\ensuremath{\mid}⟨A⟩\ensuremath{\mid}=3.10\ifmmode\pm\else\textpm\fi{}0.03$. In… 

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