Observation of Stronger-than-Binary Correlations with Entangled Photonic Qutrits

Xiao Min Hu, Bi Heng Liu, Yu Guo, Guo Yong Xiang, Yun Feng Huang, Chuan Feng Li, Guang Can Guo, Matthias Kleinmann, Tamás Vértesi, Adán Cabello

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7 Citations (Scopus)

Abstract

We present the first experimental confirmation of the quantum-mechanical prediction of stronger-than-binary correlations. These are correlations that cannot be explained under the assumption that the occurrence of a particular outcome of an n≥3-outcome measurement is due to a two-step process in which, in the first step, some classical mechanism precludes n-2 of the outcomes and, in the second step, a binary measurement generates the outcome. Our experiment uses pairs of photonic qutrits distributed between two laboratories, where randomly chosen three-outcome measurements are performed. We report a violation by 9.3 standard deviations of the optimal inequality for nonsignaling binary correlations.

Original languageEnglish
Article number180402
JournalPhysical review letters
Volume120
Issue number18
DOIs
Publication statusPublished - May 4 2018

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Hu, X. M., Liu, B. H., Guo, Y., Xiang, G. Y., Huang, Y. F., Li, C. F., Guo, G. C., Kleinmann, M., Vértesi, T., & Cabello, A. (2018). Observation of Stronger-than-Binary Correlations with Entangled Photonic Qutrits. Physical review letters, 120(18), [180402]. https://doi.org/10.1103/PhysRevLett.120.180402