Efficient accessible bounds to the classical capacity of quantum channels
Quantum Physics
2019-08-30 v2
Abstract
We present a method to detect lower bounds to the classical capacity of quantum communication channels by means of few local measurements (i.e. without complete process tomography), reconstruction of sets of conditional probabilities, and classical optimisation. The method does not require any a priori information about the channel. We illustrate its performance for significant forms of noisy channels.
Cite
@article{arxiv.1908.01614,
title = {Efficient accessible bounds to the classical capacity of quantum channels},
author = {Chiara Macchiavello and Massimiliano F. Sacchi},
journal= {arXiv preprint arXiv:1908.01614},
year = {2019}
}
Comments
10 pages; minor corrections