Observation of Three-Photon Greenberger-Horne-Zeilinger Entanglement

Dik Bouwmeester; Jian-Wei Pan; Matthew Daniell; Harald Weinfurter; Anton Zeilinger

doi:10.1103/physrevlett.82.1345

Abstract

We present the experimental observation of polarization entanglement for\nthree spatially separated photons. Such states of more than two entangled\nparticles, known as GHZ states, play a crucial role in fundamental tests of\nquantum mechanics versus local realism and in many quantum information and\nquantum computation schemes. Our experimental arrangement is such that we start\nwith two pairs of entangled photons and register one photon in a way that any\ninformation as to which pair it belongs to is erased. The registered events at\nthe detectors for the remaining three photons then exhibit the desired GHZ\ncorrelations.\n

Keywords

Quantum entanglementPhysicsPhoton entanglementPhotonQuantum mechanicsQuantum sensorPolarization (electrochemistry)Quantum nonlocalityQuantum informationQuantumW stateQuantum network

Affiliated Institutions

Universität Innsbruck AT

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Publication Info

Year: 1999
Type: article
Volume: 82
Issue: 7
Pages: 1345-1349
Citations: 1045
Access: Closed

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APA Style

                            
                                
                                    Dik Bouwmeester, 
                                
                                    Jian-Wei Pan, 
                                
                                    Matthew Daniell
                                
                                et al.
                            
                            (1999). 
                            Observation of Three-Photon Greenberger-Horne-Zeilinger Entanglement. 
                            Physical Review Letters
                            , 82
                            (7)
                            , 1345-1349.
                            https://doi.org/10.1103/physrevlett.82.1345
                        

Identifiers

DOI: 10.1103/physrevlett.82.1345