Redundantly Amplified Information Suppresses Quantum Correlations in Many-Body Systems
Redundantly Amplified Information Suppresses Quantum Correlations in Many-Body Systems
We establish bounds on quantum correlations in many-body systems. They reveal what sort of information about a quantum system can be simultaneously recorded in different parts of its environment. Specifically, independent agents who monitor environment fragments can eavesdrop only on amplified and redundantly disseminated-hence, effectively classical-information about the decoherence-resistant pointer …