Observation of Three-Photon Greenberger-Horne-Zeilinger Entanglement
- 15 February 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 82 (7), 1345-1349
- https://doi.org/10.1103/physrevlett.82.1345
Abstract
We present the experimental observation of polarization entanglement for three spatially separated photons. Such states of more than two entangled particles, known as Greenberger-Horne-Zeilinger (GHZ) states, play a crucial role in fundamental tests of quantum mechanics versus local realism and in many quantum information and quantum computation schemes. Our experimental arrangement is such that we start with two pairs of entangled photons and register the photons in a way that any information as to which pair each photon belongs to is erased. After detecting a trigger photon, the registered events at the detectors for the remaining three photons exhibit the desired GHZ correlations.This publication has 24 references indexed in Scilit:
- NMR Greenberger–Horne–Zeilinger statesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 1998
- Optimal universal and state-dependent quantum cloningPhysical Review A, 1998
- Microscopic analogs of the Greenberger-Horne-Zeilinger experimentPhysical Review A, 1998
- Substituting quantum entanglement for communicationPhysical Review A, 1997
- Three-Particle Entanglements from Two Entangled PairsPhysical Review Letters, 1997
- Entangled entanglementPhysical Review A, 1996
- New Tests of Quantum TheoryaAnnals of the New York Academy of Sciences, 1995
- Preparation of macroscopic superpositions in many-atom systemsPhysical Review A, 1994
- Bell’s theorem without inequalitiesAmerican Journal of Physics, 1990
- Experimental Test of Local Hidden-Variable TheoriesPhysical Review Letters, 1972