Composition rules for quantum processes: a no-go theorem

A quantum process encodes the causal structure that relates quantum operations performed in local laboratories. The process matrix formalism includes as special cases quantum mechanics on a fixed background space-time, but also allows for more general causal structures. Motivated by the interpretati...

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Bibliographic Details
Main Authors: Philippe Allard Guérin, Marius Krumm, Costantino Budroni, Časlav Brukner
Format: Article
Language:English
Published: IOP Publishing 2019-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/aafef7