Quantum mutual information and the one-time pad

Abstract

Alice and Bob share a correlated composite quantum system AB. If AB is used as the key for a one-time pad cryptographic system, we show that the maximum amount of information that Alice can send securely to Bob is the quantum mutual information of AB.

11 pages, LaTeX

References in corpus (1)

• On the quantum, classical and total amount of correlations in a quantum state

Cited by in corpus (9)

• Classical and quantum correlations under decoherence
• Operational Significance of Discord Consumption: Theory and Experiment
• Frozen discord in non-Markovian dephasing channels
• Stochastic resonance phenomena in spin chains
• Quantum discord in nuclear magnetic resonance systems at room temperature
• Quantum discord under system-environment coupling: the two-qubit case
• Maximum observable correlation for a bipartite quantum system
• Uncertainty Relation for Mutual Information
• Role of complementary correlations in the evolution of classical and quantum correlations under Markovian decoherence