How to Maximize the Capacity of General Quantum Noisy Channels
Quantum Physics
2015-05-13 v1
Abstract
A general quantum noisy channel is analyzed, wherein the transmitted qubits may experience symmetry-breaking decoherence, along with memory effects. We find the optimal basis not to be fully entangled, but a combination of factorized and partially-entangled states in the presence of memory, asymmetry and the state-bias of the noise. Capacity-maximization is shown to be achievable by combining temporal shaping of the transmitted qubits and optimal basis selection.
Cite
@article{arxiv.0810.1726,
title = {How to Maximize the Capacity of General Quantum Noisy Channels},
author = {Goren Gordon and Gershon Kurizki},
journal= {arXiv preprint arXiv:0810.1726},
year = {2015}
}
Comments
4 pages, 3 figures