Device-independent certification of indefinite causal order in the quantum switch

Abstract Quantum theory is compatible with scenarios in which the order of operations is indefinite. Experimental investigations of such scenarios, all of which have been based on a process known as the quantum switch, have provided demonstrations of indefinite causal order conditioned on assumption...

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Bibliographic Details
Main Authors: Tein van der Lugt, Jonathan Barrett, Giulio Chiribella
Format: Article
Language:English
Published: Nature Portfolio 2023-09-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-023-40162-8