Detecting entanglement of unknown continuous variable states with random measurements

We develop a scheme for the detection of entanglement in any continuous variable system, by constructing an optimal entanglement witness from random homodyne measurements. To this end, we introduce a set of linear constraints that guarantee the necessary properties of a witness and allow for its opt...

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Bibliographic Details
Main Authors: Tatiana Mihaescu, Hermann Kampermann, Giulio Gianfelici, Aurelian Isar, Dagmar Bruß
Format: Article
Language:English
Published: IOP Publishing 2020-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/abd1ad