Entropy of a quantum channel
Gilad Gour, Mark M. Wilde
Abstract
The authors generalize the von Neumann entropy from quantum states to quantum channels, which model evolutions of quantum physical systems, and they provide a physical interpretation of a quantum channel's entropy in terms of an information-processing task called quantum channel merging.
Topics & Concepts
Von Neumann entropyQuantum relative entropyJoint quantum entropyGeneralized relative entropyQuantum discordQuantum mutual informationPhysicsQuantumQuantum channelAmplitude damping channelQuantum mechanicsEntropy (arrow of time)Quantum operationStatistical physicsOpen quantum systemQuantum informationQuantum processQuantum capacityMathematicsCoherent informationClassical capacityQuantum error correctionQuantum stateQuantum systemTheoretical physicsQuantum algorithmVon Neumann architectureConditional quantum entropyQuantum probabilityQuantum computerQuantum Information and CryptographyAdvanced Thermodynamics and Statistical MechanicsWireless Communication Security Techniques