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arxiv 1805.02431 v2 pith:CZQIXDPK submitted 2018-05-07 quant-ph

Discriminating Quantum Correlations with Networking Quantum Teleportation

classification quant-ph
keywords quantumteleportationcorrelationsbelldiscriminatingformalisminequalitylinear
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The Bell inequality, and its substantial experimental violation, offers a seminal paradigm for showing that the world is not in fact locally realistic. Here, going beyond the scope of Bell's inequality on physical states, we show that quantum teleportation can be used to quantitatively characterize quantum correlations of physical processes. The validity of the proposed formalism is demonstrated by considering the problem of teleportation through a linear three-node quantum network. A hierarchy is derived between the Bell nonlocality, nonbilocality, steering and nonlocality-steering hybrid correlations based on a process fidelity constraint. The proposed framework can be directly extended to reveal the nonlocality structure of teleportation through any linear many-node quantum network. The formalism provides a faithful identification of quantum teleportation and demonstrates the use of quantum-information processing as a means of quantitatively discriminating quantum correlations.

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