Rotational Properties and GHZ Contradictions in N-Qubit Systems

2005/06/07 by Jay Lawrence, Lawrence, Jay
Physics and Astronomy · #FOS: Physical sciences #Quantum Physics (quant-ph) #quant-ph

paper · pdf · doi:10.48550/arxiv.quant-ph/0506063

4 pages, 1 figure

arxiv created 2005/06/07 · arxiv updated 2009/12/01

Abstract

Rotational symmetries of N-qubit Greenberger-Horne-Zeilinger (GHZ) states directly exhibit their nonlocality and render transparent the many possible measurements that produce absolute contradictions with local realism. While N measurements fix the assumed elements of reality, an exponentially growing number of absolute contradictions occurs. Operators that represent the detector settings provide a faithful representation of the symmetry group, and demonstrate Kochen-Specker contextuality.

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