Multi-Photon Entanglement and Quantum Non-Locality [chapter]

Jian-Wei Pan, Anton Zeilinger
2002 Quantum [Un]speakables  
We review recent experiments concerning multi-photon Greenberger-Horne-Zeilinger (GHZ) entanglement. We have experimentally demonstrated GHZ entanglement of up to four photons by making use of pulsed parametric downconversion. On the basis of measurements on three-photon entanglement, we have realized the first experimental test of quantum non-locality following from the GHZ argument. Not only does multi-particle entanglement enable various fundamental tests of quantum mechanics versus local
more » ... ics versus local realism, but it also plays a crucial role in many quantum-communication and quantumcomputation schemes.
doi:10.1007/978-3-662-05032-3_16 fatcat:qzfex32q3fh5diayozt7n4oara