Nonlinear Evolution And Signaling
PHYSICAL REVIEW RESEARCH(2020)
Abstract
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.
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Key words
nonlinear evolution
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