Matches in SemOpenAlex for { <https://semopenalex.org/work/W2067689218> ?p ?o ?g. }
- W2067689218 abstract "The observation of the non-local properties of multipartite entangled states is of great importance for quantum information protocols. Such properties, however, are fragile and may not be observed in the presence of decoherence exhibited by practical physical systems. In this work, we investigate the robustness of the non-locality of symmetric states experiencing phase and amplitude damping, using suitable Bell inequalities based on an extended version of Hardy's paradox. We derive thresholds for observing non-locality in terms of experimental noise parameters, and demonstrate the importance of the choice of the measurement bases for optimizing the robustness. For $W$ states, in the phase damping case, we show that this choice can lead to a trade-off between obtaining a high violation of the non-local test and optimal robustness thresholds; we also show that in this setting the non-locality of $W$ states is particularly robust for a large number of qubits. Furthermore, we apply our techniques to the discrimination of symmetric states belonging to different entanglement classes, thus illustrating their usefulness for a wide range of practical quantum information applications." @default.
- W2067689218 created "2016-06-24" @default.
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- W2067689218 date "2015-02-02" @default.
- W2067689218 modified "2023-10-18" @default.
- W2067689218 title "Decoherence effects on the nonlocality of symmetric states" @default.
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- W2067689218 doi "https://doi.org/10.1103/physreva.91.022101" @default.
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