Maximum privacy without coherence, zero-error
Quantum Physics
2017-01-03 v1
Abstract
We study the possible difference between the quantum and the private capacities of a quantum channel in the zero-error setting. For a family of channels introduced by arXiv:1312.4989, we demonstrate an extreme difference: the zero-error quantum capacity is zero, whereas the zero-error private capacity is maximum given the quantum output dimension.
Keywords
Cite
@article{arxiv.1509.01300,
title = {Maximum privacy without coherence, zero-error},
author = {Debbie Leung and Nengkun Yu},
journal= {arXiv preprint arXiv:1509.01300},
year = {2017}
}
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12 pages