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Experimental observation the One-Way Einstein-Podolsky-Rosen Steering via the detection of entanglement | | Huan Yang
; Zhi-Yong Ding
; Dong Wang
; Hao Yuan
; Xue-Ke Song
; Jie Yang
; Chang-Jin Zhang
; Liu Ye
; | | Date: |
12 Dec 2019 | | Abstract: | The asymmetry of Einstein-Podolsky-Rosen (EPR) steering is a significant
feature distinct from entanglement and Bell non-locality. It induces the
success of the steering task only along one direction (one-way steering). In
the past few years, the investigations concerning one-way steering have been
demonstrated in a series of experiments. However, they relies on the relevant
steering inequalities and the choices of measurement settings. Here, we verify
the one-way steering via entanglement detection without using any steering
inequality and measurement setting. By constructing two new states from a
two-qubit target state, we observe the one-way steering by detecting the
entanglement of these new states. The results show that the entanglement of the
newly constructing states can be regarded as a new kind of EPR steering witness
of target states. Compared to the results of Xiao et al. [Phys. Rev. Lett. 118,
140404 (2017)], we find that the ability of detecting one-way steering in our
scenario is stronger than two-setting projective measurements, which can
observe more one-way steerable states. Hence, our demonstrations can deepen the
understanding of the connection between steering and entanglement. | | Source: | arXiv, 1912.5755 | | Services: | Forum | Review | PDF | Favorites | |
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