Tomographic portrait of quantum channels
Quantum Physics
2018-06-06 v1
Abstract
We formulate the notion of quantum channels in the framework of quantum tomography and address there the issue of whether such maps can be regarded as classical stochastic maps. In particular kernels of maps acting on probability representation of quantum states are derived for qubit and bosonic systems. In the latter case it results that a single mode Gaussian quantum channel corresponds to non-Gaussian classical channels.
Cite
@article{arxiv.1708.07697,
title = {Tomographic portrait of quantum channels},
author = {G. G. Amosov and S. Mancini and V. I. Man'ko},
journal= {arXiv preprint arXiv:1708.07697},
year = {2018}
}
Comments
15 pages, accepted for publication in Reports on Mathematical Physics