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Bounding the Classical Capacity of Multilevel Damping Quantum Channels

Bounding the Classical Capacity of Multilevel Damping Quantum Channels A recent method to detect lower bonds to the classical capacity of quantum communication channels is applied for general damping channels in finite dimension d>2. The method compares the mutual information obtained by coding on the computational basis and on a Fourier basis, which can be obtained by just two local measurement settings and classical optimization. The results for large representative classes of different damping structures for high dimensional quantum systems are presented. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advanced Quantum Technologies Wiley

Bounding the Classical Capacity of Multilevel Damping Quantum Channels

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Publisher
Wiley
Copyright
© 2020 Wiley‐VCH GmbH
eISSN
2511-9044
DOI
10.1002/qute.202000013
Publisher site
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Abstract

A recent method to detect lower bonds to the classical capacity of quantum communication channels is applied for general damping channels in finite dimension d>2. The method compares the mutual information obtained by coding on the computational basis and on a Fourier basis, which can be obtained by just two local measurement settings and classical optimization. The results for large representative classes of different damping structures for high dimensional quantum systems are presented.

Journal

Advanced Quantum Technologies – Wiley

Published: Nov 1, 2020

Keywords: channel capacity; quantum communication channels; quantum information

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