Diagnosing quantum chaos in many-body systems using entanglement as a resource
Étienne Lantagne-Hurtubise, Stephan Plugge, Oguzhan Can, Marcel Franz
Abstract
The authors introduce new protocols to diagnose many-body quantum chaos using the entanglement between two identical copies of a system prepared in the thermal field double state. These protocols do not require backward time evolution of quantum states, but instead comprise conventional, time-ordered measurements on the coupled system. The approach is applicable to generic quantum many-body systems, thus allowing to investigate quantum chaos beyond the few-particle settings considered so far.
Topics & Concepts
Quantum entanglementQuantumComputer scienceCHAOS (operating system)Field (mathematics)PhysicsStatistical physicsQuantum informationQuantum mechanicsQuantum chaosQuantum systemQuantum sensorTheoretical computer scienceQuantum discordQuantum networkQuantum metrologyMathematicsQuantum computerQuantum channelTopology (electrical circuits)Quantum algorithmQuantum cryptographyResource (disambiguation)Quantum error correctionQuantum capacityQuantum information scienceQuantum operationChaoticAmplitude damping channelOpen quantum systemQuantum many-body systemsQuantum chaos and dynamical systemsQuantum Information and Cryptography