TY - JOUR
T1 - Revisiting Hardy's paradox
T2 - Counterfactual statements, real measurements, entanglement and weak values
AU - Aharonov, Yakir
AU - Botero, Alonso
AU - Popescu, Sandu
AU - Reznik, Benni
AU - Tollaksen, Jeff
N1 - Funding Information:
We thank A.C. Elitzur, S. Dolev and L. Vaidman for discussions. Y.A. and B.R. acknowledge the support from grant 471/98 of the Israel Science Foundation, established by the Israel Academy of Sciences and Humanities, and NSF grant PHY-9971005.
PY - 2002/8/26
Y1 - 2002/8/26
N2 - Hardy's paradox is revisited. Usually the paradox is dismissed on grounds of counterfactuality, i.e., because the paradoxical effects appear only when one considers results of experiments which do not actually take place. We suggest a new set of measurements in connection with Hardy's scheme, and show that when they are actually performed, they yield strange and surprising outcomes. More generally, we claim that counterfactual paradoxes point to a deeper structure inherent to quantum mechanics.
AB - Hardy's paradox is revisited. Usually the paradox is dismissed on grounds of counterfactuality, i.e., because the paradoxical effects appear only when one considers results of experiments which do not actually take place. We suggest a new set of measurements in connection with Hardy's scheme, and show that when they are actually performed, they yield strange and surprising outcomes. More generally, we claim that counterfactual paradoxes point to a deeper structure inherent to quantum mechanics.
UR - http://www.scopus.com/inward/record.url?scp=0037179043&partnerID=8YFLogxK
U2 - 10.1016/S0375-9601(02)00986-6
DO - 10.1016/S0375-9601(02)00986-6
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AN - SCOPUS:0037179043
SN - 0375-9601
VL - 301
SP - 130
EP - 138
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 3-4
ER -