Measurement-Based Quantum Correlations for Quantum Information Processing
Uman Khalid, Junaid ur Rehman, Hyundong Shin
Abstract
Measurement-based quantum correlations (MbQCs) depend on how strongly an observer perturbs the unobserved system. This distinctive property differentiates MbQCs from traditional quantum correlations such as entanglement and discord. We utilize MbQCs to elucidate quantum information processing capabilities in quantum computation and quantum state discrimination. We show that MbQCs exist more generally than entanglement and discord in optimal assisted quantum state discrimination and in a deterministic quantum computation with a single qubit. We also propose an MbQC-based dimension witness and analyze it in different noisy and noiseless scenarios.
Topics & Concepts
Quantum entanglementQuantum discordComputer scienceQuantum informationQuantumQuantum computerQubitQuantum channelQuantum capacityQuantum error correctionStatistical physicsPhysicsTheoretical computer scienceQuantum networkQuantum mechanicsQuantum Information and CryptographyQuantum Computing Algorithms and ArchitectureQuantum Mechanics and Applications