Experimental Test of Quantum Contextuality in Neutron Interferometry
Journal Article
·
· Physical Review Letters
- Atominstitut der Oesterreichischen Universitaeten, Stadionallee 2, A-1020 Wien (Austria)
- Departamento de Fisica Aplicada II, Universidad de Sevilla, E-41012 Sevilla (Spain)
We performed an experimental test of the Kochen-Specker theorem based on an inequality derived from the Peres-Mermin proof, using spin-path (momentum) entanglement in a single neutron system. Following the strategy proposed by Cabello et al.[Phys. Rev. Lett. 100, 130404 (2008)], a Bell-like state was generated, and three expectation values were determined. The observed violation 2.291+-0.008not<=1 clearly shows that quantum mechanical predictions cannot be reproduced by noncontextual hidden-variable theories.
- OSTI ID:
- 21347071
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 4 Vol. 103; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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