Mathematical Techniques for Quantum Communication Theory

Details Mathematical Techniques for Quantum Communication Theory Mathematical Techniques for Quantum Communication Theory

1996-04-01

arxiv.org/abs/quant-ph/9604001v1

Open Systems & Information Dynamics 3 (1995) 1

Physics

Quantum Physics

12 pages, standard LaTeX, manuscript placed in archive because of the relative unavailability of the journal in which it appea

Scientific paper

We present mathematical techniques for addressing two closely related questions in quantum communication theory. In particular, we give a statistically motivated derivation of the Bures-Uhlmann measure of distinguishability for density operators, and we present a simplified proof of the Holevo upper bound to the mutual information of quantum communication channels. Both derivations give rise to novel quantum measurements.

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