Nonlinear evolution and signaling

We propose a condition, called convex quasilinearity, for deterministic nonlinear quantum evolutions. Evolutions satisfying this condition do not allow for arbitrary fast signaling, therefore, they cannot be ruled out by a standard argument. We also give an explicit example of a nonlinear qubit evol...

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Bibliographic Details
Main Authors: Jakub Rembieliński, Paweł Caban
Format: Article
Language:English
Published: American Physical Society 2020-01-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.2.012027
Description
Summary:We propose a condition, called convex quasilinearity, for deterministic nonlinear quantum evolutions. Evolutions satisfying this condition do not allow for arbitrary fast signaling, therefore, they cannot be ruled out by a standard argument. We also give an explicit example of a nonlinear qubit evolution satisfying quasilinearity.
ISSN:2643-1564