Do all pure entangled states violate Bell's inequalities for correlation functions?
Phys Rev Lett
; 88(21): 210402, 2002 May 27.
Article
em En
| MEDLINE
| ID: mdl-12059465
ABSTRACT
Any pure entangled state of two particles violates a Bell inequality for two-particle correlation functions (Gisin's theorem). We show that there exist pure entangled N>2 qubit states that do not violate any Bell inequality for N particle correlation functions for experiments involving two dichotomic observables per local measuring station. We also find that Mermin-Ardehali-Belinskii-Klyshko inequalities may not always be optimal for refutation of local realistic description.
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MEDLINE
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En
Ano de publicação:
2002
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Article