Witnessing quantum capacities of correlated channels
Quantum Physics
2016-12-01 v1
Abstract
We test a general method to detect lower bounds of the quantum channel capacity for two-qubit correlated channels. We consider in particular correlated dephasing, depolarising and amplitude damping channels. We show that the method is easily implementable, it does not require a priori knowledge about the channels, and it is very efficient, since it does not rely on full quantum process tomography.
Keywords
Cite
@article{arxiv.1611.02857,
title = {Witnessing quantum capacities of correlated channels},
author = {Chiara Macchiavello and Massimiliano F. Sacchi},
journal= {arXiv preprint arXiv:1611.02857},
year = {2016}
}
Comments
9 pages, 3 figures