Robust Self-Testing of Quantum Systems via Noncontextuality Inequalities
Robust Self-Testing of Quantum Systems via Noncontextuality Inequalities
Characterising unknown quantum states and measurements is a fundamental problem in quantum information processing. In this Letter, we provide a novel scheme to self-test local quantum systems using non-contextuality inequalities. Our work leverages the graph-theoretic framework for contextuality introduced by Cabello, Severini, and Winter, combined with tools from mathematical optimisation …