Nonorthogonal Quantum States Maximize Classical Information Capacity
Quantum Physics
2009-01-23 v2
Abstract
I demonstrate that, rather unexpectedly, there exist noisy quantum channels for which the optimal classical information transmission rate is achieved only by signaling alphabets consisting of nonorthogonal quantum states.
Keywords
Cite
@article{arxiv.quant-ph/9703043,
title = {Nonorthogonal Quantum States Maximize Classical Information Capacity},
author = {Chistopher A. Fuchs},
journal= {arXiv preprint arXiv:quant-ph/9703043},
year = {2009}
}
Comments
5 pages, REVTeX, mild extension of results, much improved presentation, to appear in Physical Review Letters