From third-order correlations of randomized measurements, the authors reconstruct ten local invariants and derive a separability criterion that detects Werner states in d=3 for p > 1/cuberoot(10), improving the second-order threshold p > 1/2.
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Entanglement detection via third-order local invariants from randomized measurements
From third-order correlations of randomized measurements, the authors reconstruct ten local invariants and derive a separability criterion that detects Werner states in d=3 for p > 1/cuberoot(10), improving the second-order threshold p > 1/2.