Experimental demonstration of quantum contextuality with nonentangled photons

Journal Article · Thu Oct 15 00:00:00 EDT 2009 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.80.044101· OSTI ID:21316510

Liu, B H; Huang, Y F; Gong, Y X; Sun, F W; Zhang, Y S; Li, C F; Guo, G C ^[1]

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1. Key Laboratory of Quantum Information, CAS, University of Science and Technology of China, Hefei 230026 (China)

We present an experimental test of quantum contextuality by using two-photon product states. The experimental results show that the noncontextual hidden-variable theories are violated by nonentangled states in spite of the local hidden-variable theories can be violated or not. We find that the Hong-Ou-Mandel-type quantum interference effect causes the quantum contextuality.

• OSTI ID: 21316510
• Journal Information: Physical Review. A, Vol. 80, Issue 4; Other Information: DOI: 10.1103/PhysRevA.80.044101; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
HIDDEN VARIABLES
INTERFERENCE
MULTI-PHOTON PROCESSES
OPTICS
PHOTONS
QUANTUM ENTANGLEMENT