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Realization of the Contextuality-Nonlocality Tradeoff with a Qubit-Qutrit Photon Pair

Xiang Zhan, Xin Zhang, Jian Li, Yongsheng Zhang, Barry C. Sanders, and Peng Xue
Phys. Rev. Lett. 116, 090401 – Published 29 February 2016
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Abstract

We report our experimental results on the no-disturbance principle, which imposes a fundamental monogamy relation on contextuality versus nonlocality. We employ a photonic qutrit-qubit hybrid to explore no-disturbance monogamy at the quantum boundary spanned by noncontextuality and locality inequalities. In particular, we realize the single point where the quantum boundary meets the no-disturbance boundary. Our results agree with quantum theory and satisfy the stringent monogamy relation thereby providing direct experimental evidence of a tradeoff between locally contextual correlations and spatially separated correlations. Thus, our experiment provides evidence that entanglement is a particular manifestation of a more fundamental quantum resource.

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  • Received 6 November 2015

DOI:https://doi.org/10.1103/PhysRevLett.116.090401

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & OpticalGeneral Physics

Authors & Affiliations

Xiang Zhan1, Xin Zhang1, Jian Li1, Yongsheng Zhang2,3,*, Barry C. Sanders3,4,5,6,7,†, and Peng Xue1,‡

  • 1Department of Physics, Southeast University, Nanjing 211189, China
  • 2Key Laboratory of Quantum Information, University of Science and Technology of China, CAS, Hefei 230026, China
  • 3Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, CAS, Hefei 230026, China
  • 4Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, CAS, Hefei 230026, China
  • 5Shanghai Branch, CAS Center for Excellence, University of Science and Technology of China, Shanghai 201305, China
  • 6Institute for Quantum Science and Technology, University of Calgary, Alberta T2N 1N4, Canada
  • 7Program in Quantum Information Science, Canadian Institute for Advanced Research, Toronto, Ontario M5G 1Z8, Canada

  • *yshzhang@ustc.edu.cn
  • sandersb@ucalgary.ca
  • gnep.eux@gmail.com

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Issue

Vol. 116, Iss. 9 — 4 March 2016

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