Phys. Rev. A 56, 1023–1024 (1997)Testing Hardy’s nonlocality with n spin-1/2 particlesReceived 19 December 1996; published in the issue dated July 1997 For a system of n spin-1/2 particles and for two measurement possibilities for each particle there is always a state showing Hardy’s nonlocality. Mixed states of an n- (n>~3) particle system can only show Hardy’s nonlocality. Product states for any n never show nonlocality. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.56.1023
DOI:
10.1103/PhysRevA.56.1023
PACS:
03.65.Bz
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