Memory effects in a Markov chain dephasing channel
Quantum Physics
2008-08-26 v1
Abstract
We study a dephasing channel with memory, modelled by a Markov chain. We show that even weak memory effects have a detrimental impact on the performance of quantum error correcting schemes designed for uncorrelated errors. We also discuss an alternative scheme that takes advantage of memory effects to protect quantum information.
Cite
@article{arxiv.0802.4172,
title = {Memory effects in a Markov chain dephasing channel},
author = {Antonio D'Arrigo and Elena De Leo and Giuliano Benenti and Giuseppe Falci},
journal= {arXiv preprint arXiv:0802.4172},
year = {2008}
}
Comments
5 pages, 1 figure, NIC@QS proceedings