Bell's Theorem without Inequalities and without Probabilities for Two Observers
Abstract
A proof of Bell's theorem using two maximally entangled states of two qubits is presented. It exhibits a similar logical structure to Hardy's argument of ``nonlocality without inequalities.'' However, it works for 100% of the runs of a certain experiment. Therefore, it can also be viewed as a GreenbergerHorneZeilingerlike proof involving only two spacelike separated regions.
 Publication:

Physical Review Letters
 Pub Date:
 March 2001
 DOI:
 10.1103/PhysRevLett.86.1911
 arXiv:
 arXiv:quantph/0008085
 Bibcode:
 2001PhRvL..86.1911C
 Keywords:

 Quantum Physics
 EPrint:
 REVTeX, 4 pages