Nonlinear evolution and signaling
Jakub Rembieliński, Paweł Caban · Physical Review Research · 2020
This paper proposes a general rule that allows to distinguish acceptable and non-acceptable nonlinear quantum evolutions. Convex quasi-linear evolutions are free from problems with superluminal signaling. The explicit model of nonlinear but convex quasi-linear evolution of a qubit is constructed.