Quantum privacy and quantum coherence

Abstract

We derive a simple relation between a quantum channel's capacity to convey coherent (quantum) information and its usefulness for quantum cryptography.

6 pages RevTex; two short comments added 7 October 1997

References in corpus (3)

• Quantum privacy amplification and the security of quantum cryptography over noisy channels
• The capacity of the noisy quantum channel
• Quantum data processing and error correction

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• Physical Underpinnings of Privacy
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• Enhancement of transmission rates in quantum memory channels with damping
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• Quantum coherence and distribution of N-partite bosonic fields in noninertial frame
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• Monotonicity of the Holevo quantity: a necessary condition for equality in terms of a channel and its applications
• A criterion for coincidence of the entanglement-assisted classical capacity and the Holevo capacity of a quantum channel
• Entanglement-breaking channels in infinite dimensions
• Quantum error correcting codes based on privacy amplification
• Subfactors and quantum information theory
• Remarks on entanglement assisted classical capacity
• Semantic Security with Infinite Dimensional Quantum Eavesdropping Channel
• Inequalities for the quantum privacy
• An Epistemic Analysis of Time Phenomenon