Experimental demonstration of measurement-device-independent measure of quantum steering

Yuan Yuan Zhao, Huan Yu Ku, Shin Liang Chen, Hong Bin Chen, Franco Nori, Guo Yong Xiang, Chuan Feng Li, Guang Can Guo, Yueh Nan Chen

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Within the framework of quantum refereed steering games, quantum steerability can be certified without any assumption on the underlying state nor the measurements involved. Such a scheme is termed the measurement-device-independent (MDI) scenario. Here, we introduce a measure of steerability in an MDI scenario, i.e., the result merely depends on the observed statistics and the quantum inputs. We prove that such a measure satisfies the convex steering monotone. Moreover, it is robust against not only measurement biases but also losses. We also experimentally estimate the amount of the measure with an entangled photon source. As two by-products, our experimental results provide lower bounds on an entanglement measure of the underlying state and an incompatible measure of the involved measurement. Our research paves a way for exploring one-side device-independent quantum information processing within an MDI framework.

Original languageEnglish
Article number77
Journalnpj Quantum Information
Issue number1
Publication statusPublished - 2020 Dec 1

All Science Journal Classification (ASJC) codes

  • Computer Science (miscellaneous)
  • Statistical and Nonlinear Physics
  • Computer Networks and Communications
  • Computational Theory and Mathematics


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