Viable entanglement detection of unknown mixed states in low dimensions

Abstract

We explore procedures to detect entanglement of unknown mixed states, which can be experimentally viable. The heart of the method is a hierarchy of simple feasibility problems, which provides sufficient conditions to entanglement. Our numerical investigations indicate that the entanglement is detected with a cost which is much lower than full state tomography. The procedure is applicable to both free and bound entanglement, and involves only single copy measurements.

8 pages, 9 figures, 4 tables

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Cited by in corpus (10)

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• Fast entanglement detection for unknown states of two spatial qutrits
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• Direct method for measuring and witnessing quantum entanglement of arbitrary two-qubit states through Hong-Ou-Mandel interference
• Automated Machine Learning can Classify Bound Entangled States with Tomograms
• Detecting Entanglement of Unknown Quantum States with Random Measurements
• Quantum process tomography with informational incomplete data of two $J$-coupled heterogeneous spins relaxation in a time window much greater than $T_1$
• Detecting entanglement of unknown states by violating the Clauser-Horne-Shimony-Holt inequality
• Efficient Quantum Tomography of Two-Mode Wigner Functions