Tests of alternative quantum theories with neutrons

Journal Article · Thu Dec 04 00:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4903089· OSTI ID:22390715

Sponar, S.; Durstberger-Rennhofer, K.; Badurek, G.; Hasegawa, Y. ^[1]; Klepp, J. ^[2]; Schmitzer, C.; Bartosik, H. ^[3]

---

1. Atominstitut, Vienna University of Technology (Austria)
2. Faculty of Physics, University of Vienna (Austria)
3. CERN, Geneve (Switzerland)

According to Bell’s theorem, every theory based on local realism is at variance with certain predictions of quantum mechanics. A theory that maintains realism but abandons reliance on locality, which has been proposed by Leggett, is incompatible with experimentally observable quantum correlations. In our experiment correlation measurements of spin-energy entangled single-neutrons violate a Leggett-type inequality by more than 7.6 standard deviations. The experimental data falsify the contextual realistic model and are fully in favor of quantum mechanics.

• OSTI ID: 22390715
• Journal Information: AIP Conference Proceedings, Vol. 1633, Issue 1; Conference: 11. International Conference on Quantum Communication, Measurement and Computation, Vienna (Austria), 30 Jul - 3 Aug 2012; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CORRELATIONS
LOCALITY
NEUTRONS
QUANTUM ENTANGLEMENT
QUANTUM MECHANICS
SPIN