Quantifying entanglement in a 68-billion-dimensional quantum state space

Quantifying entanglement in a large quantum system requires an intractable number of measurements. Here, the authors demonstrate a method for certifying entanglement from extremely undersampled data by combining a new quantitative entanglement witness with an adaptive sampling procedure.

Bibliographic Details
Main Authors: James Schneeloch, Christopher C. Tison, Michael L. Fanto, Paul M. Alsing, Gregory A. Howland
Format: Article
Language:English
Published: Nature Publishing Group 2019-06-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-019-10810-z