Concavity of the auxiliary function appearing in quantum reliability function an classical-quantum channels
Information Theory
2016-11-17 v1 math.IT
Abstract
Concavity of the auxiliary function which appears in the random coding exponent as the lower bound of the quantum reliability function for general quantum states is proven for s between 0 and 1.
Keywords
Cite
@article{arxiv.cs/0501057,
title = {Concavity of the auxiliary function appearing in quantum reliability function an classical-quantum channels},
author = {Jun Ichi Fujii and Ritsuo Nakamoto and Kenjiro Yanagi},
journal= {arXiv preprint arXiv:cs/0501057},
year = {2016}
}
Comments
submitted in IEEE Trans. IT