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Quantum Information Processing
Published in: Quantum Information Processing 11/2020

01-11-2020

On classical capacity of Weyl channels

Author: Grigori Amosov

Published in: Quantum Information Processing | Issue 11/2020

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Abstract

We study an old problem concerning the resolution of the question of whether the supremum of the Holevo upper bound for the output of a quantum channel coincides with the classical capacity of this channel. It is shown that this property takes place for one special case. The additivity of minimal output entropy is proved for the Weyl channel obtained by the deformation of a q-c Weyl channel. The classical capacity of channel is calculated.
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Metadata
Title
On classical capacity of Weyl channels
Author
Grigori Amosov
Publication date
01-11-2020
Publisher
Springer US
Published in
Quantum Information Processing / Issue 11/2020
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-020-02900-5

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