Confident entanglement detection via separable numerical range
Timo Simnacher,
Jakub Czartowski,
Konrad Szymański
et al.
Abstract:We investigate the joint (separable) numerical range of multiple measurements, i.e., the regions of expectation values accessible with (separable) quantum states for given observables. This not only enables efficient entanglement detection, but also sheds light on the geometry of the set of quantum states. More precisely, in an experiment, if the confidence region for the obtained data and the separable numerical range are disjoint, entanglement is reliably detected. Generically, the success of such an experim… Show more
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