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Entanglement characterization using quantum designs
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DOI：10.22331/q-2020-09-16-325.png)
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Abstract
En 中文
We present in detail a statistical approach for the reference-frame-independent detection and characterization of multipartite entanglement based on moments of randomly measured correlation functions. We start by discussing how the corresponding moments can be evaluated with designs, linking methods from group and entanglement theory. Then, we illustrate the strengths of the presented framework with a focus on the multipartite scenario. We discuss a condition for characterizing genuine multipartite entanglement for three qubits, and we prove criteria that allow for a discrimination of W-type entanglement for an arbitrary number of qubits.
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STATES
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5.4
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951
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