Main > HPArticle > Experimental randomness certification with a symmetric informationally complete positive operator-valued measurement
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  • Manuscript Accepted: Jun. 28, 2020

    Online Published: Jun. 29, 2020

Chinese Optics Letters, 2020, Vol. 18, Issue 10, pp.

Experimental randomness certification with a symmetric informationally complete positive operator-valued measurement [Early Posting]

Liu Chenxi, Liu Kun, Wang Xiaorun, Wu Luyan, Li Jian, Wang Qin

Author Affiliations

  • Nanjing University of Posts and Telecommunications
  • Nanjing University of Posts and Telecommunications
  • Nanjing University of Posts and Telecommunications
  • Nanjing University of Posts and Telecommunications
  • Nanjing University of Posts and Telecommunications
  • Nanjing University of Posts and Telecommunications

Abstract

Nonlocal correlations observed from entangled quantum particles imply the existence of intrinsic randomness. Normally, local projective measurements performed on a two-qubit entangled state can only certify one-bit randomness at most. While non-projective measurement can certify more randomness with the same quantum resources. In this paper, we carry out an experimental investigation on quantum randomness certification through a symmetric, informationally complete, positive operator-valued measurement, which in principle can certify the maximum randomness through an entangled qubit. We observe the quantum nonlocal correlations that are close to the theoretical values. In the future, this work can provide a valuable reference for the research on the limit of randomness certification.

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