Measurement incompatibility and steering are necessary and sufficient for operational contextuality
Armin Tavakoli, Roope Uola
Abstract
Two fundamental features of quantum theory are that measurements cannot be performed jointly and that entangled states can be steered through action-at-a-distance. Here it is shown that both these phenomena are in one-to-one correspondence with the failure of noncontextual models to explain the predictions of quantum theory.
Topics & Concepts
QuantumKochen–Specker theoremComputer scienceMathematicsQuantum entanglementState (computer science)Quantum stateQuantum systemTheoretical physicsField (mathematics)Measure (data warehouse)Term (time)Quantum computerQuantum discordQuantum Mechanics and ApplicationsQuantum Information and CryptographyAdvanced Thermodynamics and Statistical Mechanics