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arXiv · 0909.4851

Experimental Determination of Entanglement for Arbitrary Pure States

Shao-Ming Fei·Ming-Jing Zhao·Kai Chen·Zhi-Xi Wang
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Abstract

We present a way of experimentally determining the concurrence in terms of the expectation values of local observables for arbitrary multipartite pure states. In stead of the joint measurements on two copies of a state in the experiment for two-qubit systems [S. P. Walborn et al. Nature (London)440, 20(2006)], we only need one copy of the state in every measurement for any arbitrary dimensional multipartite systems, avoiding the preparation of twin states or the imperfect copy of the state.

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Shao-Ming Fei, Ming-Jing Zhao, Kai Chen, Zhi-Xi Wang. 2009-09-26. Experimental Determination of Entanglement for Arbitrary Pure States. https://doi.org/10.1103/physreva.80.032320

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