• DOI:10.1103/PhysRevA.75.032332
Corpus ID: 119513062

Quantum nonlocality of four-qubit entangled states

@article{Wu2007QuantumNO,
  title={Quantum nonlocality of four-qubit entangled states},
  author={Chunfeng Wu and Y. Yeo and L. C. Kwek and C. H. Oh},
  journal={Physical Review A},
  year={2007},
  volume={75},
  pages={032332}
}

Chunfeng Wu, Y. Yeo, +1 author C. H. Oh

Published 2007

Physics

Physical Review A

We derive a Bell inequality for testing violation of local realism. Quantum nonlocality of several four-qubit states is investigated. These include the Greenberger-Zeilinger-Horne (GHZ) state, W state, linear cluster state, and the state |{chi}> that has recently been proposed in [Phys. Rev. Lett. 96, 060502 (2006)]. The Bell inequality is optimally violated by |{chi}> but not violated by the GHZ state. The linear cluster state also violates the Bell inequality though not optimally. The state… CONTINUE READING

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