Quantum capacity analysis of multi-level amplitude damping channels

Estimating the capacity of quantum channels is relevant to understand at which rate quantum information can be exchanged. Here, the authors introduce multi-level amplitude damping channels that generalize the qubit amplitude damping noise model, analyse their quantum and private capacities, and exac...

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Bibliographic Details
Main Authors: Stefano Chessa, Vittorio Giovannetti
Format: Article
Language:English
Published: Nature Publishing Group 2021-02-01
Series:Communications Physics
Online Access:https://doi.org/10.1038/s42005-021-00524-4
Description
Summary:Estimating the capacity of quantum channels is relevant to understand at which rate quantum information can be exchanged. Here, the authors introduce multi-level amplitude damping channels that generalize the qubit amplitude damping noise model, analyse their quantum and private capacities, and exactly derive the capacities of quantum channels that are not anti-degradable.
ISSN:2399-3650