Violation of Locality Without Inequalities for Multiparticle Perfect Correlations

Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230027, China(Dated: February 1, 2008)We prove that for a three-qubit system in the Greenberger-Horne-Zeilinger (GHZ) state, localityper se is in conflict with the perfect GHZ correlations. The proof does not in any way use therealism assumption and can lead to a refutation of locality. We also provide inequalities that areimposed by locality. The experimental confirmation of the present reasoning may imply a genuinequantum nonlocality and will deepen our understanding of nonlocality of nature.