Optimal compression for mixed signal states
量子物理
2009-10-31 v3
摘要
We consider the problem of the optimal compression rate in the case of the source producing mixed signal states within the {\it visible} scheme (where Alice, who is to compress the signal, can know the identities of the produced states). We show that a simple strategy based on replacing the signal states with their {\it extensions} gives {\it optimal} compression. As a result we obtain a considerable simplification of the formula for optimal compression rate within visible scheme.
引用
@article{arxiv.quant-ph/9905058,
title = {Optimal compression for mixed signal states},
author = {Michal Horodecki},
journal= {arXiv preprint arXiv:quant-ph/9905058},
year = {2009}
}
备注
RevTeX, 5 pages, improvement of the proof (changes in the formula (16))