The quantum one-time pad in the presence of an eavesdropper

Abstract

A classical one-time pad allows two parties to send private messages over a public classical channel -- an eavesdropper who intercepts the communication learns nothing about the message. A quantum one-time pad is a shared quantum state which allows two parties to send private messages or private quantum states over a public quantum channel. If the eavesdropper intercepts the quantum communication she learns nothing about the message. In the classical case, a one-time pad can be created using shared and partially private correlations. Here we consider the quantum case in the presence of an eavesdropper, and find the single letter formula for the rate at which the two parties can send messages using a quantum one-time pad.

References in corpus (8)

• Quantum information can be negative
• Randomizing quantum states: Constructions and applications
• Quantum state merging and negative information
• Quantum mutual information and the one-time pad
• The private classical capacity with a symmetric side channel and its application to quantum cryptography
• The quantum capacity with symmetric side channels
• Structured Codes Improve the Bennett-Brassard-84 Quantum Key Rate
• On almost randomizing channels with a short Kraus decomposition

Cited by in corpus (11)

• Quantum Communication in Rindler Spacetime
• Correlation measures and distillable entanglement in AdS/CFT
• Game-theoretic characterization of antidegradable channels
• Hadamard quantum broadcast channels
• Conditional quantum one-time pad
• The Min-entropy as a Resource for One-Shot Private State Transfer, Quantum Masking and State Transition
• Uncertainty Relation for Mutual Information
• Bulk private curves require large conditional mutual information
• Deterministic quantum one-time pad via Fibonacci anyons
• Hybrid quantum network design against unauthorized secret-key generation, and its memory cost
• Generic Entanglement Entropy for Quantum States with Symmetry