Experimental certification of steering criterion based on general entropic uncertainty relation
arXiv:1909.09327 · doi:10.1103/PhysRevA.101.022324
Abstract
Quantum steering describes the phenomenon that one system can be immediately influenced by another with local measurements. It can be detected by the violation of a powerful and useful steering criterion from general entropic uncertainty relation. This criterion, in principle, can be evaluated straightforwardly and achieved by only probability distributions from a finite set of measurement settings. Herein, we experimentally verify the steering criterion by means of the two-photon Werner-like states and three Pauli measurements. The results indicate that quantum steering can be verified by the criterion in a convenient way. In particular, it is no need to perform the usual quantum state tomography in experiment, which reduces the required experimental resources greatly. Moreover, we demonstrate that the criterion is stronger than the linear one for the detecting quantum steering of the Werner-like states.
arXiv comment6 pages, 3 figures, 4 tables, submitted to Phys. Rev. A on 19th August, 2019 (Under review)
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