Experimentally implementable criteria revealing substructures of genuine multipartite entanglement

Abstract

We present a general framework that reveals substructures of genuine multipartite entanglement. Via simple inequalities it is possible to discriminate different sets of multipartite qubit states. These inequalities are beneficial regarding experimental examinations as only local measurements are required. Furthermore, the number of observables scales favorably with system size. In exemplary cases we demonstrate the noise resistance and discuss implementations.

14 pages, 4 figures

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• Entanglement detection on an NMR quantum information processor using random local measurements
• Hierarchy of multipartite nonlocality in the nonsignaling scenario
• Limits to multipartite entanglement generation with bosons and fermions
• Generation and Detection of Quantum Correlations and Entanglement on a Spin-Based Quantum Information Processor