Additive invariants on quantum channels and applications to regularized minimum entropy
Quantum Physics
2009-02-12 v4
Abstract
We introduce two additive invariants of output quantum channels. If the value of one these invariants is less than 1 then the logarithm of the inverse of its value is a positive lower bound for the regularized minimum entropy of an output quantum channel. We give a few examples in which one of these invariants is less than 1. We also study the special cases where the above both invariants are equal to 1.
Keywords
Cite
@article{arxiv.0809.0078,
title = {Additive invariants on quantum channels and applications to regularized minimum entropy},
author = {Shmuel Friedland},
journal= {arXiv preprint arXiv:0809.0078},
year = {2009}
}
Comments
14 pages, a few typo corrections