Quantum mutual information and the one-time pad

Details Quantum mutual information and the one-time pad Quantum mutual information and the one-time pad

2006-04-27

arxiv.org/abs/quant-ph/0604207v1

Physics

Quantum Physics

11 pages, LaTeX

Scientific paper

10.1103/PhysRevA.74.042305

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.

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