Distinguishability, Ensemble Steering, and the No-Signaling Principle
Distinguishability, Ensemble Steering, and the No-Signaling Principle
We consider a fundamental operational task, distinguishing systems in different states, in the framework of generalized probabilistic theories and provide a general formalism of minimum-error discrimination of states in convex optimization. With the formalism established, we show that the distinguishability is generally a global property assigned to the ensemble of …