Quest for GHZ States |
| M. Żukowskia,b, A. Zeilingera, M.A. Hornec and H. Weinfurtera aInstitut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria bInstitute of Theoretical Physics and Astrophysics Gdańsk Uniwersity, 80-952 Gdańsk, Poland cStonehill College, North Easton, Massachusetts 02357, USA |
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| The premises of the Einstein-Podolsky-Rosen argument for their claim that quantum mechanics is an incomplete theory are inconsistent when applied to three-particle systems in entangled Greenberger-Horne-Zeilinger states. However, thus far there is no experimental confirmation for existence of such states. We propose a technique to obtain Greenberger-Horne-Zeilinger states which rests upon an observation that when a single particle from two independent entangled pairs is detected in a manner such that it is impossible to determine from which pair the single came, the remaining three particles become entangled. |
| DOI: 10.12693/APhysPolA.93.187 PACS numbers: 03.65.Bz, 42.50.Dv, 89.70.+c |