Quantum Contextuality in a Single-Neutron Optical Experiment

Journal Article · Fri Dec 08 00:00:00 EST 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.97.230401· OSTI ID:20861441

Hasegawa, Yuji ^[1]; Loidl, Rudolf; Baron, Matthias ^[1]; Badurek, Gerald; Rauch, Helmut ^[1]

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1. Atominstitut der Oesterreichischen Universitaeten, Stadionallee 2, A-1020 Vienna (Austria)

An experimental demonstration of quantum contextuality with neutrons is presented, which intended to exhibit a Kochen-Specker-like phenomenon. Since no perfect correlation is expected in practical experiments, inequalities are derived to distinguish quantitatively the obtained results from predictions by a noncontextual hidden variable theory. Experiments were accomplished with the use of a neutron interferometer combined with spinor manipulation devices. The results clearly violate the prediction of noncontextual theories.

• OSTI ID: 20861441
• Journal Information: Physical Review Letters, Vol. 97, Issue 23; Other Information: DOI: 10.1103/PhysRevLett.97.230401; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CORRELATIONS
HIDDEN VARIABLES
INTERFEROMETERS
NEUTRONS
QUANTUM MECHANICS