Exponent for classical-quantum multiple access channel
Quantum Physics
2017-02-08 v2 Information Theory
math.IT
Abstract
In this paper we obtain a lower bound of exponent of average probability of error for classical quantum multiple access channel, which implies that for all rate pairs in the capacity region is achievable by a code with exponential probability of error. Thus we re-obtain the direct coding theorem.
Cite
@article{arxiv.1701.02939,
title = {Exponent for classical-quantum multiple access channel},
author = {Masahito Hayashi and Ning Cai},
journal= {arXiv preprint arXiv:1701.02939},
year = {2017}
}
Comments
We found a serious gap and could not fix it. So, we withdraw this paper