Mathematical Techniques for Quantum Communication Theory
Quantum Physics
2007-05-23 v1
Abstract
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.
Cite
@article{arxiv.quant-ph/9604001,
title = {Mathematical Techniques for Quantum Communication Theory},
author = {Christopher A. Fuchs and Carlton M. Caves},
journal= {arXiv preprint arXiv:quant-ph/9604001},
year = {2007}
}
Comments
12 pages, standard LaTeX, manuscript placed in archive because of the relative unavailability of the journal in which it appears